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AT369456B - Gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln - Google Patents

Gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln

Info

Publication number
AT369456B
AT369456B AT0945177A AT945177A AT369456B AT 369456 B AT369456 B AT 369456B AT 0945177 A AT0945177 A AT 0945177A AT 945177 A AT945177 A AT 945177A AT 369456 B AT369456 B AT 369456B
Authority
AT
Austria
Prior art keywords
surface irregularities
head surface
rail head
removing rail
trackable
Prior art date
Application number
AT0945177A
Other languages
English (en)
Other versions
ATA945177A (de
Inventor
Josef Ing Theurer
Klaus Dipl Ing Dr Riessberger
Original Assignee
Plasser Bahnbaumasch Franz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plasser Bahnbaumasch Franz filed Critical Plasser Bahnbaumasch Franz
Priority to AT0945177A priority Critical patent/AT369456B/de
Priority to DE2841506A priority patent/DE2841506C2/de
Priority to CH1016578A priority patent/CH635882A5/de
Priority to ZA00785718A priority patent/ZA785718B/xx
Priority to IN1117/CAL/78A priority patent/IN151167B/en
Priority to GB7842747A priority patent/GB2019279B/en
Priority to BR7807268A priority patent/BR7807268A/pt
Priority to HU78PA1334A priority patent/HU178072B/hu
Priority to DD78209220A priority patent/DD140484A5/de
Priority to SU782693452A priority patent/SU1033011A3/ru
Priority to CS788073A priority patent/CS259851B2/cs
Priority to SE7812546A priority patent/SE438005B/sv
Priority to FR7834633A priority patent/FR2413502A1/fr
Priority to US05/968,264 priority patent/US4295764A/en
Priority to CA317,804A priority patent/CA1113788A/en
Priority to PL1978212187A priority patent/PL120775B1/pl
Priority to JP16132778A priority patent/JPS54136491A/ja
Priority to AU42907/78A priority patent/AU532223B2/en
Priority to IT31372/78A priority patent/IT1101147B/it
Priority to ES476423A priority patent/ES476423A1/es
Publication of ATA945177A publication Critical patent/ATA945177A/de
Priority to US06/155,559 priority patent/US4294041A/en
Application granted granted Critical
Publication of AT369456B publication Critical patent/AT369456B/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material
    • Y10T29/49996—Successive distinct removal operations
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/50—Planing
    • Y10T409/501312—Randomly manipulated, work supported, or work following device
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/50—Planing
    • Y10T409/50328—Means for shaving by blade spanning work surface
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/50—Planing
    • Y10T409/504756—Planing with means to relatively infeed cutter and work
    • Y10T409/505084—Planing with means to relatively infeed cutter and work with plural sequentially acting cutters or with double acting cutter

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Machine Tool Units (AREA)
AT0945177A 1977-12-30 1977-12-30 Gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln AT369456B (de)

Priority Applications (21)

Application Number Priority Date Filing Date Title
AT0945177A AT369456B (de) 1977-12-30 1977-12-30 Gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln
DE2841506A DE2841506C2 (de) 1977-12-30 1978-09-23 Gleisverfahrbare Maschine zum Abtragen von Unregelmäßigkeiten, Riffeln od.dgl. an Schienenkopfoberflächen
CH1016578A CH635882A5 (de) 1977-12-30 1978-09-29 Verfahren und gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln.
ZA00785718A ZA785718B (en) 1977-12-30 1978-10-09 A travelling on-track machine for smoothing out irregularities,particularly ridges,on the rail head surfaces of laid tracks
IN1117/CAL/78A IN151167B (de) 1977-12-30 1978-10-16
GB7842747A GB2019279B (en) 1977-12-30 1978-11-01 Traveling on track machine for smoothing out irregularities on laid rail tracks
BR7807268A BR7807268A (pt) 1977-12-30 1978-11-06 Maquina deslocavel em uma via ferrea e processo para a remocao de irregularidades nas superficies de base dos trilhos,especialmente estrias
HU78PA1334A HU178072B (en) 1977-12-30 1978-11-15 Machine moving on track for eliminating unevenness particularly waviness being on the railhead surface of laid track
DD78209220A DD140484A5 (de) 1977-12-30 1978-11-21 Gleisverfahrbare maschine und verfahren zum abtragen von unregelmaessigkeiten an schienenkopfoberflaechen
SU782693452A SU1033011A3 (ru) 1977-12-30 1978-11-30 Рельсошлифовальна машина
CS788073A CS259851B2 (en) 1977-12-30 1978-12-06 Travelling machine for irregularities removal especially of grooving on rail heads surface
SE7812546A SE438005B (sv) 1977-12-30 1978-12-06 Pa reler korbar maskin for avlegsnande av oregelbundenheter, i synnerhet refflor, pa relhuvudytan
FR7834633A FR2413502A1 (fr) 1977-12-30 1978-12-08 Machine mobile d'elimination des irrregularites sur les surfaces superieures des rails, notamment des traces d'usure ondulatoire
US05/968,264 US4295764A (en) 1977-12-30 1978-12-11 Mobile machine for removing surface irregularities from rail heads
CA317,804A CA1113788A (en) 1977-12-30 1978-12-12 Mobile machine for removing surface irregularities from rail heads
PL1978212187A PL120775B1 (en) 1977-12-30 1978-12-27 Self-propelled railroad machine for removing by machining the defects and deformations on rail head top surface in particular furrows thereon and method of removing such defects and deformationsormacijj verkhnejj poverkhnosti golovki rel'sov,a osobenno ikh uglublenijj i sposob ustranenija putem obrabotki ubytkov deformacijj poverkhnosti rel'sov
JP16132778A JPS54136491A (en) 1977-12-30 1978-12-28 Onnrail travelling machine for removing irregularity of raillbed surface
AU42907/78A AU532223B2 (en) 1977-12-30 1978-12-28 Machine for smoothing out irregularities on the rail head surfaces
IT31372/78A IT1101147B (it) 1977-12-30 1978-12-28 Macchina mobile su rotaia per lo sfianamaento di irregolarita' esistenti sulla superficie superiore del fungo delle rotaie,in particolare rigature
ES476423A ES476423A1 (es) 1977-12-30 1978-12-28 Procedimiento y maquina trasladable sobre vias para eliminarlas irregularidades en las superficies de la cabeza de los carriles de vias tendidas.
US06/155,559 US4294041A (en) 1977-12-30 1980-06-02 Mobile machines for removing surface irregularities from rail heads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0945177A AT369456B (de) 1977-12-30 1977-12-30 Gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln

Publications (2)

Publication Number Publication Date
ATA945177A ATA945177A (de) 1980-05-15
AT369456B true AT369456B (de) 1983-01-10

Family

ID=3614256

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0945177A AT369456B (de) 1977-12-30 1977-12-30 Gleisverfahrbare maschine zum abtragen von schienenkopfoberflaechen-unregelmaessigkeiten, insbesondere riffeln

Country Status (19)

Country Link
US (2) US4295764A (de)
JP (1) JPS54136491A (de)
AT (1) AT369456B (de)
AU (1) AU532223B2 (de)
BR (1) BR7807268A (de)
CA (1) CA1113788A (de)
CH (1) CH635882A5 (de)
CS (1) CS259851B2 (de)
DD (1) DD140484A5 (de)
DE (1) DE2841506C2 (de)
ES (1) ES476423A1 (de)
FR (1) FR2413502A1 (de)
GB (1) GB2019279B (de)
HU (1) HU178072B (de)
IN (1) IN151167B (de)
IT (1) IT1101147B (de)
PL (1) PL120775B1 (de)
SE (1) SE438005B (de)
ZA (1) ZA785718B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007060215A1 (de) * 2007-12-12 2009-06-18 Laurent Goer Vorrichtung zum Bearbeiten einer Fahrkante
AT519049A1 (de) * 2016-09-07 2018-03-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Gleisverfahrbare Maschine zum Abtragen von Unregelmäßigkeiten an einer Schienenkopfoberfläche

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849263A1 (de) * 1978-01-02 1979-08-16 Plasser Bahnbaumasch Franz Gleisverfahrbare maschine zum bearbeiten der schienenkopfoberflaechen
AT368220B (de) * 1979-08-14 1982-09-27 Plasser Bahnbaumasch Franz Maschine zur bearbeitung der schienenkopfoberfl[che eines verlegten gleises
AT369809B (de) * 1979-08-14 1983-02-10 Plasser Bahnbaumasch Franz Gleisverfahrbare maschine zum abtragen der schienenkopfoberflaechen-unregelmaessigkeiten
AT369810B (de) * 1979-08-14 1983-02-10 Plasser Bahnbaumasch Franz Gleisverfahrbare hobel-maschine mit hobel-werkzeug
CH633336A5 (fr) * 1980-01-09 1982-11-30 Speno International Machine de chantier ferroviaire pour la rectification du champignon des rails.
AT368219B (de) * 1980-01-17 1982-09-27 Plasser Bahnbaumasch Franz Verfahren zum entfernen von unregelmaessigkeiten an der schienenkopfoberflaeche verlegter gleise
DE3028071A1 (de) * 1980-07-24 1982-03-11 Werkzeugmaschinenfabrik Adolf Waldrich Coburg Gmbh & Co, 8630 Coburg Verfahren zum reprofilieren von eisenbahnschienenkopfprofilen
DE3222208C2 (de) * 1982-06-12 1985-03-28 Dr. techn. Ernst Linsinger & Co GmbH, Steyrermühl Verfahrbare Vorrichtung zum Fräsen von Schienenköpfen
US4584798A (en) * 1984-03-29 1986-04-29 Speno Rail Services Co. Automated railway track maintenance system
AT388764B (de) * 1987-05-12 1989-08-25 Plasser Bahnbaumasch Franz Band-schleifaggregat zum abschleifen von unregelmaessigkeiten an der schienenkopfflaeche einer oder beider schienen eines verlegten gleises
FR2703083B1 (fr) * 1993-03-25 1995-06-23 Geismar Anc Ets L Machine de meulage de rails d'une voie ferree.
AT410951B (de) * 2000-07-17 2003-09-25 Linsinger Maschinenbau Gmbh Verfahren zum reprofilieren mindestens des fahrspiegels einer schiene sowie einrichtung hierzu
PT2177664E (pt) 2008-10-20 2012-04-16 Schweerbau Gmbh & Co Kg Processo e dispositivo para a usinagem de uma peça a trabalhar com um gume de geometria definida
RU2449074C2 (ru) * 2010-06-15 2012-04-27 Открытое акционерное общество "Калужский завод "Ремпутьмаш" Рельсообрабатывающий поезд
US20130189045A1 (en) 2012-01-19 2013-07-25 Loram Maintenance Of Way, Inc. Method and apparatus for milling of railroad track
US9617691B2 (en) 2013-03-15 2017-04-11 Greenleaf Technology Corporation Rail re-profiling method and apparatus
JP5881874B2 (ja) * 2015-02-19 2016-03-09 保線機器整備株式会社 レール頭部削正機および自走式レール頭部削正装置
GB2540767A (en) * 2015-07-27 2017-02-01 Transp For London A Body Corp Established Pursuant To The Greater London Authorities Act 1999 Rail grinding machine
CN107366203B (zh) * 2016-11-11 2022-11-22 中国铁建高新装备股份有限公司 一种地铁铣轨车用铁屑仓
AT521163B1 (de) * 2018-08-07 2019-11-15 Linsinger Maschb Gesellschaft M B H Verfahren zum Bearbeiten der Lauffläche einer Schiene
AT523240B1 (de) * 2019-12-04 2024-01-15 Mate Gmbh Reprofilierungsverfahren an zumindest einer Schiene
JP2024500798A (ja) 2020-12-22 2024-01-10 シュヴェーアバウ・インテルナツィオナール・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシャフト 成形物を削正する装置及び方法
US20240003096A1 (en) 2020-12-22 2024-01-04 Schweerbau International Gmbh & Co. Kg Device for milling a profile, associated method and reference body
CA3201634A1 (en) 2020-12-22 2022-06-30 Schweerbau International Gmbh & Co. Kg Device with a rotationally drivable milling body

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DE257886C (de) *
DE150969C (de) *
US1025754A (en) * 1910-09-27 1912-05-07 Woods Gilbert Rail Planer Company Ltd Machine for planing rails upon their tracks.
US1035129A (en) * 1910-12-22 1912-08-06 William D Gherky Grinding-machine.
US1031640A (en) * 1911-10-13 1912-07-02 William D Gherky Track-grinding machine.
DE391147C (de) * 1922-06-07 1924-02-29 Charles Oxley Schienenhobel fuer eingebaute Strassenbahnschienen
FR559132A (fr) * 1922-11-25 1923-09-10 Appareil pour le nettoyage des rails doubles
DE391146C (de) * 1923-02-06 1924-03-05 Heinrich Ahrens Maschine zum Bearbeiten der Kopfflaechen von eingebauten oder freiliegenden Schienen
US2093969A (en) * 1935-08-09 1937-09-21 Norton Co Track grinding brick and adapter
US2124273A (en) * 1936-01-09 1938-07-19 Norton Co Track grinding brick
DE814601C (de) * 1949-03-25 1951-09-24 Fried Krupp Lokomotivfabrik Schienenschleifwagen
DE905984C (de) * 1952-02-08 1954-03-08 Elektro Thermit Gmbh Vorrichtung zum profilgemaessen Bearbeiten geschweisster Schienenstossstellen durch Schleifen, Hobeln, Fraesen u. dgl.
DE1021746B (de) * 1953-11-11 1957-12-27 Scheuchzer Fils Auguste Schleifvorrichtung fuer Eisenbahnschienen
US2741883A (en) * 1954-11-19 1956-04-17 Scheuchzer Alfred Apparatus for rectifying the rails of railroad tracks
DE1206461B (de) * 1955-11-15 1965-12-09 Speno International Schienenschleifwagen
US2779141A (en) * 1955-11-15 1957-01-29 Speno International Railgrinder
AT234137B (de) * 1959-02-13 1964-06-10 Karl Gerlach Vorrichtung zum Nachprofilieren der Lauffläche und Fahrkante abgefahrener Eisenbahnschienen
DE1235710B (de) * 1959-02-13 1967-03-02 Karl Gerlach Verfahren und Vorrichtung zum Aufarbeiten abgefahrener Eisenbahnschienen durch Fraesen mit Messerkoepfen
DE1277069B (de) * 1964-08-17 1968-09-05 Hermann Deising Vorrichtung zum Glaetten der Schienenkopfoberflaechen von Eisenbahnschienen
DE1534078B2 (de) * 1964-12-31 1975-11-27 Franz Plasser Bahnbaumaschinen- Industriegesellschaft Mbh, Wien Fahrbare Gleisstopf-, Nivellier- und Richtmaschine
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
US3508463A (en) * 1966-08-30 1970-04-28 Chemetron Corp Rail trimming apparatus
CH529260A (fr) * 1970-08-14 1972-10-15 Speno Internat S A Procédé de meulage des ondes longues d'ondulation des rails de chemin de fer et dispositif pour sa mise en oeuvre
CH548488A (fr) * 1972-06-08 1974-04-30 Speno International Procede de rectification en voie d'une file de rails par meulage de sa surface de roulement et dispositif pour la mise en oeuvre de ce procede.
JPS4989290A (de) * 1972-12-28 1974-08-26
CH581232A5 (de) * 1975-01-13 1976-10-29 Speno International
AT344771B (de) * 1975-12-01 1978-08-10 Plasser Bahnbaumasch Franz Fahrbare schienenschleifmaschine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007060215A1 (de) * 2007-12-12 2009-06-18 Laurent Goer Vorrichtung zum Bearbeiten einer Fahrkante
AT519049A1 (de) * 2016-09-07 2018-03-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Gleisverfahrbare Maschine zum Abtragen von Unregelmäßigkeiten an einer Schienenkopfoberfläche
WO2018046115A1 (de) * 2016-09-07 2018-03-15 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Gleisverfahrbare maschine zum abtragen von unregelmässigkeiten an einer schienenkopfoberfläche
AT519049B1 (de) * 2016-09-07 2019-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Gleisverfahrbare Maschine zum Abtragen von Unregelmäßigkeiten an einer Schienenkopfoberfläche
EA036946B1 (ru) * 2016-09-07 2021-01-19 Плассер Энд Тойрер Экспорт Фон Банбаумашинен Гезельшафт М.Б.Х. Перемещающаяся по рельсовому пути машина для удаления неровностей с поверхности головки рельса
US11203839B2 (en) 2016-09-07 2021-12-21 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Machine, mobile on a track, for removing irregularities on a rail head surface

Also Published As

Publication number Publication date
SE7812546L (sv) 1979-07-01
AU4290778A (en) 1979-07-05
AU532223B2 (en) 1983-09-22
DD140484A5 (de) 1980-03-05
US4295764A (en) 1981-10-20
CS259851B2 (en) 1988-11-15
ATA945177A (de) 1980-05-15
ZA785718B (en) 1979-09-26
IT1101147B (it) 1985-09-28
ES476423A1 (es) 1979-05-01
IT7831372A0 (it) 1978-12-28
FR2413502B1 (de) 1983-07-22
GB2019279B (en) 1982-02-17
SE438005B (sv) 1985-03-25
GB2019279A (en) 1979-10-31
HU178072B (en) 1982-02-28
BR7807268A (pt) 1979-08-14
FR2413502A1 (fr) 1979-07-27
JPS54136491A (en) 1979-10-23
DE2841506C2 (de) 1984-12-20
PL212187A1 (pl) 1979-09-10
CS807378A2 (en) 1988-04-15
CH635882A5 (de) 1983-04-29
CA1113788A (en) 1981-12-08
PL120775B1 (en) 1982-03-31
US4294041A (en) 1981-10-13
DE2841506A1 (de) 1979-07-05
IN151167B (de) 1983-03-05

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