CH595649A5 - - Google Patents
Info
- Publication number
- CH595649A5 CH595649A5 CH982975A CH982975A CH595649A5 CH 595649 A5 CH595649 A5 CH 595649A5 CH 982975 A CH982975 A CH 982975A CH 982975 A CH982975 A CH 982975A CH 595649 A5 CH595649 A5 CH 595649A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7501295 | 1975-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH595649A5 true CH595649A5 (es) | 1978-02-15 |
Family
ID=6649712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH982975A CH595649A5 (es) | 1975-01-17 | 1975-07-28 |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT335537B (es) |
BE (1) | BE832380A (es) |
CH (1) | CH595649A5 (es) |
DD (1) | DD121196A5 (es) |
DK (1) | DK350075A (es) |
FR (1) | FR2298122A1 (es) |
GB (1) | GB1467569A (es) |
LU (1) | LU73134A1 (es) |
NL (1) | NL7600054A (es) |
SE (1) | SE7508721L (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7707290U1 (de) * | 1977-03-09 | 1977-06-30 | Mechanische Weberei Gmbh, 4792 Bad Lippspringe | Lichtbildprojektionswand mit lautsprechern |
-
1975
- 1975-07-25 AT AT579975A patent/AT335537B/de not_active IP Right Cessation
- 1975-07-28 CH CH982975A patent/CH595649A5/xx not_active IP Right Cessation
- 1975-07-30 DD DD187572A patent/DD121196A5/xx unknown
- 1975-08-01 LU LU73134A patent/LU73134A1/xx unknown
- 1975-08-01 SE SE7508721A patent/SE7508721L/xx unknown
- 1975-08-01 DK DK350075A patent/DK350075A/da unknown
- 1975-08-07 FR FR7524611A patent/FR2298122A1/fr active Granted
- 1975-08-13 BE BE159156A patent/BE832380A/xx unknown
- 1975-08-18 GB GB3426775A patent/GB1467569A/en not_active Expired
-
1976
- 1976-01-05 NL NL7600054A patent/NL7600054A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATA579975A (de) | 1976-07-15 |
DK350075A (da) | 1976-07-18 |
GB1467569A (en) | 1977-03-16 |
LU73134A1 (es) | 1976-03-02 |
DD121196A5 (es) | 1976-07-12 |
NL7600054A (nl) | 1976-07-20 |
FR2298122A1 (fr) | 1976-08-13 |
SE7508721L (sv) | 1976-07-19 |
AT335537B (de) | 1977-03-10 |
BE832380A (fr) | 1975-12-01 |
FR2298122B1 (es) | 1979-05-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased | ||
PL | Patent ceased |