OA085E - - Google Patents
Info
- Publication number
- OA085E OA085E OA52089A OA52089A OA085E OA 085 E OA085 E OA 085E OA 52089 A OA52089 A OA 52089A OA 52089 A OA52089 A OA 52089A OA 085 E OA085 E OA 085E
- Authority
- OA
- OAPI
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
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR980225A FR87109E (en) | 1964-06-30 | 1964-06-30 | Method of manufacturing a curved screen and screen thus obtained |
Publications (1)
Publication Number | Publication Date |
---|---|
OA085E true OA085E (en) | 1970-12-15 |
Family
ID=8833607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
OA52089A OA085E (en) | 1964-06-30 | 1965-06-29 |
Country Status (11)
Country | Link |
---|---|
US (1) | US3384432A (en) |
AT (1) | AT275909B (en) |
BE (1) | BE666010A (en) |
CH (1) | CH449998A (en) |
DE (1) | DE1264099B (en) |
ES (1) | ES314742A2 (en) |
FR (1) | FR87109E (en) |
GB (1) | GB1093639A (en) |
LU (1) | LU48923A1 (en) |
NL (1) | NL6508315A (en) |
OA (1) | OA085E (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4318589A (en) * | 1980-07-07 | 1982-03-09 | The Singer Company | Segmented curved screen construction for preserving a predefined curvature |
US5098616A (en) * | 1990-11-19 | 1992-03-24 | Cae Electronics Ltd. | Method for forming a curved projection screen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1882829A (en) * | 1930-10-29 | 1932-10-18 | Bell Telephone Labor Inc | Relief picture viewing screen |
US2476521A (en) * | 1947-09-22 | 1949-07-19 | Vitarama Corp | Screen for picture projections |
FR1283342A (en) * | 1960-12-22 | 1962-02-02 | Improvements to projection screens, especially for cinema |
-
1964
- 1964-06-30 FR FR980225A patent/FR87109E/en not_active Expired
-
1965
- 1965-06-23 AT AT570365A patent/AT275909B/en active
- 1965-06-23 CH CH917265A patent/CH449998A/en unknown
- 1965-06-24 GB GB26892/65A patent/GB1093639A/en not_active Expired
- 1965-06-26 DE DEH56416A patent/DE1264099B/en active Pending
- 1965-06-26 LU LU48923A patent/LU48923A1/xx unknown
- 1965-06-28 US US467289A patent/US3384432A/en not_active Expired - Lifetime
- 1965-06-28 BE BE666010D patent/BE666010A/xx unknown
- 1965-06-28 ES ES0314742A patent/ES314742A2/en not_active Expired
- 1965-06-29 NL NL6508315A patent/NL6508315A/xx unknown
- 1965-06-29 OA OA52089A patent/OA085E/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CH449998A (en) | 1968-01-15 |
LU48923A1 (en) | 1965-08-26 |
ES314742A2 (en) | 1966-05-16 |
BE666010A (en) | 1965-10-18 |
DE1264099B (en) | 1968-03-21 |
US3384432A (en) | 1968-05-21 |
GB1093639A (en) | 1967-12-06 |
NL6508315A (en) | 1965-12-31 |
FR87109E (en) | 1966-06-17 |
AT275909B (en) | 1969-11-10 |