NO750406L - - Google Patents
Info
- Publication number
- NO750406L NO750406L NO750406A NO750406A NO750406L NO 750406 L NO750406 L NO 750406L NO 750406 A NO750406 A NO 750406A NO 750406 A NO750406 A NO 750406A NO 750406 L NO750406 L NO 750406L
- Authority
- NO
- Norway
- Prior art keywords
- nuclear fuel
- sleeve
- refractory metal
- lining
- container
- Prior art date
Links
- 239000003758 nuclear fuel Substances 0.000 claims description 95
- 239000000446 fuel Substances 0.000 claims description 78
- 239000000463 material Substances 0.000 claims description 60
- 239000003870 refractory metal Substances 0.000 claims description 50
- 238000000576 coating method Methods 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 18
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 16
- 229910052750 molybdenum Inorganic materials 0.000 claims description 16
- 239000011733 molybdenum Substances 0.000 claims description 16
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 229910001093 Zr alloy Inorganic materials 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 claims description 7
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 6
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 239000010955 niobium Substances 0.000 claims description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052702 rhenium Inorganic materials 0.000 claims description 4
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000012808 vapor phase Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 150000003061 plutonium compounds Chemical class 0.000 claims description 2
- UTDLAEPMVCFGRJ-UHFFFAOYSA-N plutonium dihydrate Chemical compound O.O.[Pu] UTDLAEPMVCFGRJ-UHFFFAOYSA-N 0.000 claims description 2
- FLDALJIYKQCYHH-UHFFFAOYSA-N plutonium(IV) oxide Inorganic materials [O-2].[O-2].[Pu+4] FLDALJIYKQCYHH-UHFFFAOYSA-N 0.000 claims description 2
- 150000003586 thorium compounds Chemical class 0.000 claims description 2
- 150000003671 uranium compounds Chemical class 0.000 claims description 2
- 230000004992 fission Effects 0.000 description 20
- 239000007789 gas Substances 0.000 description 20
- 239000011888 foil Substances 0.000 description 19
- 239000008188 pellet Substances 0.000 description 17
- 230000004888 barrier function Effects 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002826 coolant Substances 0.000 description 8
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
- G21C3/20—Details of the construction within the casing with coating on fuel or on inside of casing; with non-active interlayer between casing and active material with multiple casings or multiple active layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/441,131 US3969186A (en) | 1974-02-11 | 1974-02-11 | Nuclear fuel element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO750406L true NO750406L (fr) | 1975-08-12 |
Family
ID=23751665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO750406A NO750406L (fr) | 1974-02-11 | 1975-02-10 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3969186A (fr) |
| JP (1) | JPS50109397A (fr) |
| BE (1) | BE825363A (fr) |
| CH (1) | CH585454A5 (fr) |
| DE (1) | DE2501309A1 (fr) |
| DK (1) | DK596374A (fr) |
| ES (1) | ES430999A1 (fr) |
| FR (1) | FR2260849B1 (fr) |
| GB (1) | GB1491341A (fr) |
| IL (1) | IL45793A (fr) |
| IT (1) | IT1031360B (fr) |
| NL (1) | NL7414265A (fr) |
| NO (1) | NO750406L (fr) |
| SE (1) | SE412969B (fr) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097402A (en) * | 1976-06-29 | 1978-06-27 | General Electric Company | Nuclear fuel assembly and process |
| DE2737532C2 (de) * | 1977-08-19 | 1979-05-10 | Kraftwerk Union Ag, 4330 Muelheim | Verfahren zum Schutz der Hüllrohre von Kernreaktorbrennstäben |
| US5761263A (en) * | 1981-05-14 | 1998-06-02 | Hitachi, Ltd. | Nuclear fuel rod and method of manufacturing the same |
| GB2104711B (en) * | 1981-08-24 | 1985-05-09 | Gen Electric | Nuclear fuel element and method of producing same |
| US4582676A (en) * | 1983-02-22 | 1986-04-15 | Westinghouse Electric Corp. | Coating a uranium dioxide nuclear fuel with a zirconium diboride burnable poison |
| FR2551905B1 (fr) * | 1983-09-08 | 1989-05-05 | Fragema Framatome & Cogema | Elements de combustible nucleaire |
| US4613479A (en) * | 1984-03-14 | 1986-09-23 | Westinghouse Electric Corp. | Water reactor fuel cladding |
| GB8729139D0 (en) * | 1987-12-14 | 1988-02-17 | Atomic Energy Authority Uk | Heat exchanger |
| US4942016A (en) * | 1988-09-19 | 1990-07-17 | General Electric Company | Nuclear fuel element |
| US4971753A (en) * | 1989-06-23 | 1990-11-20 | General Electric Company | Nuclear fuel element, and method of forming same |
| US5247550A (en) * | 1992-03-27 | 1993-09-21 | Siemens Power Corporation | Corrosion resistant zirconium liner for nuclear fuel rod cladding |
| US5301218A (en) * | 1992-10-22 | 1994-04-05 | General Electric Company | Tolerant metal fuel/cladding barrier and related method of installation |
| US5469481A (en) * | 1993-07-14 | 1995-11-21 | General Electric Company | Method of preparing fuel cladding having an alloyed zirconium barrier layer |
| US5383228A (en) * | 1993-07-14 | 1995-01-17 | General Electric Company | Method for making fuel cladding having zirconium barrier layers and inner liners |
| US5524032A (en) * | 1993-07-14 | 1996-06-04 | General Electric Company | Nuclear fuel cladding having an alloyed zirconium barrier layer |
| US6005906A (en) * | 1996-06-12 | 1999-12-21 | Siemens Power Corporation | Corrosion and hydride resistant nuclear fuel rod |
| US6714618B1 (en) * | 1997-11-28 | 2004-03-30 | General Electric Company | Temperature-based method for controlling the amount of metal applied to metal oxide surfaces to reduce corrosion and stress corrosion cracking |
| US6243433B1 (en) * | 1999-05-14 | 2001-06-05 | General Electic Co. | Cladding for use in nuclear reactors having improved resistance to stress corrosion cracking and corrosion |
| US7402173B2 (en) | 2000-09-18 | 2008-07-22 | Boston Scientific Scimed, Inc. | Metal stent with surface layer of noble metal oxide and method of fabrication |
| US7101391B2 (en) * | 2000-09-18 | 2006-09-05 | Inflow Dynamics Inc. | Primarily niobium stent |
| US6773663B2 (en) | 2002-05-03 | 2004-08-10 | Honeywell International, Inc. | Oxidation and wear resistant rhenium metal matrix composites |
| US6821313B2 (en) * | 2002-05-31 | 2004-11-23 | Honeywell International, Inc. | Reduced temperature and pressure powder metallurgy process for consolidating rhenium alloys |
| US6946096B2 (en) | 2002-05-03 | 2005-09-20 | Honeywell International, Inc. | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors |
| US6987339B2 (en) * | 2002-05-03 | 2006-01-17 | Honeywell International, Inc. | Flywheel secondary bearing with rhenium or rhenium alloy coating |
| JP2013517479A (ja) * | 2010-01-13 | 2013-05-16 | アドバンスト・リアクター・コンセプツ・エルエルシー | シースで被覆された環状の金属核燃料 |
| FR2961624B1 (fr) | 2010-06-16 | 2014-11-28 | Commissariat Energie Atomique | Joint d'interface solide a porosite ouverte pour crayon de combustible nucleaire et pour barre de commande nucleaire |
| FR2961623B1 (fr) | 2010-06-16 | 2013-08-30 | Commissariat Energie Atomique | Joint d'interface solide a porosite ouverte pour crayon de combustible nucleaire et pour barre de commande nucleaire |
| US20140169516A1 (en) * | 2012-12-14 | 2014-06-19 | Global Nuclear Fuel - Americas, Llc | Fuel rods with varying axial characteristics and nuclear fuel assemblies including the same |
| US9303295B2 (en) | 2012-12-28 | 2016-04-05 | Terrapower, Llc | Iron-based composition for fuel element |
| US10157687B2 (en) | 2012-12-28 | 2018-12-18 | Terrapower, Llc | Iron-based composition for fuel element |
| US10128003B2 (en) | 2012-12-28 | 2018-11-13 | Terrapower, Llc | Fuel assembly |
| US10217533B2 (en) | 2013-08-30 | 2019-02-26 | Electric Power Research Institute, Inc. | Fuel rod cladding and methods for making and using same |
| US10068675B1 (en) | 2013-11-01 | 2018-09-04 | The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration | Advanced protective coatings for gr-based nuclear propulsion fuel elements |
| US10424415B2 (en) | 2014-04-14 | 2019-09-24 | Advanced Reactor Concepts LLC | Ceramic nuclear fuel dispersed in a metallic alloy matrix |
| US11996206B2 (en) * | 2021-05-07 | 2024-05-28 | Ut-Battelle, Llc | 3D printed features on nuclear fuel cladding for optimized heat transfer |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859206A (en) * | 1957-08-20 | 1961-01-18 | British Thomson Houston Co Ltd | Improvements relating to the canning of fuel elements for use in nuclear reactors |
| US3067116A (en) * | 1961-03-06 | 1962-12-04 | Kittel John Howard | Protected nuclear fuel element |
| US3211930A (en) * | 1962-11-08 | 1965-10-12 | Westinghouse Electric Corp | Thermionic energy converter |
| IT666942A (fr) * | 1962-11-16 | |||
| NL302610A (fr) * | 1962-12-26 | |||
| US3198711A (en) * | 1964-08-18 | 1965-08-03 | James O Mcpartland | Thermoelectric nuclear fuel element |
| FR1446889A (fr) * | 1964-09-17 | 1966-07-22 | Atomic Energy Authority Uk | Perfectionnements aux cartouches de combustible nucléaire |
| JPS455116Y1 (fr) * | 1965-03-09 | 1970-03-10 | ||
| FR1479289A (fr) * | 1966-02-02 | 1967-05-05 | Commissariat Energie Atomique | élément combustible et son procédé de fabrication |
| US3365371A (en) * | 1966-10-14 | 1968-01-23 | Gen Electric | Nuclear reactor fuel pellet |
| US3501337A (en) * | 1966-12-27 | 1970-03-17 | Nasa | Tungsten seal coat |
| GB1187929A (en) * | 1968-05-06 | 1970-04-15 | Atomic Energy Authority Uk | Improvements in or relating to Nuclear Reactor Fuel Elements. |
| DE2127240A1 (en) * | 1970-06-11 | 1971-12-16 | Combustion Eng | Nuclear reactor fuel rod - of fuel tablets stacked in sheathing tube - with metal lining layer |
| DE2149078B2 (de) * | 1971-10-01 | 1975-02-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Kernreaktor-Bauteil |
-
1974
- 1974-02-11 US US05/441,131 patent/US3969186A/en not_active Expired - Lifetime
- 1974-10-07 IL IL45793A patent/IL45793A/en unknown
- 1974-10-14 ES ES430999A patent/ES430999A1/es not_active Expired
- 1974-10-25 SE SE7413487A patent/SE412969B/xx not_active IP Right Cessation
- 1974-10-31 NL NL7414265A patent/NL7414265A/xx not_active Application Discontinuation
- 1974-11-15 DK DK596374A patent/DK596374A/da unknown
-
1975
- 1975-01-13 GB GB1336/75A patent/GB1491341A/en not_active Expired
- 1975-01-15 DE DE19752501309 patent/DE2501309A1/de active Granted
- 1975-01-31 IT IT19835/75A patent/IT1031360B/it active
- 1975-02-10 BE BE153213A patent/BE825363A/fr not_active IP Right Cessation
- 1975-02-10 NO NO750406A patent/NO750406L/no unknown
- 1975-02-11 FR FR7504174A patent/FR2260849B1/fr not_active Expired
- 1975-02-11 CH CH155975A patent/CH585454A5/xx not_active IP Right Cessation
- 1975-02-12 JP JP50016966A patent/JPS50109397A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50109397A (fr) | 1975-08-28 |
| DK596374A (fr) | 1975-10-13 |
| FR2260849B1 (fr) | 1981-04-17 |
| US3969186A (en) | 1976-07-13 |
| FR2260849A1 (fr) | 1975-09-05 |
| BE825363A (fr) | 1975-05-29 |
| NL7414265A (nl) | 1975-08-13 |
| AU7419874A (en) | 1976-04-15 |
| DE2501309A1 (de) | 1975-08-14 |
| SE7413487L (fr) | 1975-08-12 |
| IL45793A (en) | 1977-03-31 |
| CH585454A5 (fr) | 1977-02-28 |
| IL45793A0 (en) | 1974-12-31 |
| IT1031360B (it) | 1979-04-30 |
| ES430999A1 (es) | 1977-11-01 |
| DE2501309C2 (fr) | 1988-11-10 |
| GB1491341A (en) | 1977-11-09 |
| SE412969B (sv) | 1980-03-24 |
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