FR691854A - Device for opening the film duct in cinematographic projection devices - Google Patents
Device for opening the film duct in cinematographic projection devicesInfo
- Publication number
- FR691854A FR691854A FR691854DA FR691854A FR 691854 A FR691854 A FR 691854A FR 691854D A FR691854D A FR 691854DA FR 691854 A FR691854 A FR 691854A
- Authority
- FR
- France
- Prior art keywords
- opening
- projection devices
- cinematographic projection
- film duct
- duct
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- G03B1/00—Film strip handling
- G03B1/56—Threading; Loop forming
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR691854T | 1930-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR691854A true FR691854A (en) | 1930-10-28 |
Family
ID=9035198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR691854D Expired FR691854A (en) | 1930-03-13 | 1930-03-13 | Device for opening the film duct in cinematographic projection devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR691854A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431681A (en) * | 1945-06-23 | 1947-12-02 | Argus Inc | Movable tension shoe |
US2477624A (en) * | 1946-06-14 | 1949-08-02 | Illinois Watch Case Co | Removable film gate assembly for picture projection apparatus |
-
1930
- 1930-03-13 FR FR691854D patent/FR691854A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431681A (en) * | 1945-06-23 | 1947-12-02 | Argus Inc | Movable tension shoe |
US2477624A (en) * | 1946-06-14 | 1949-08-02 | Illinois Watch Case Co | Removable film gate assembly for picture projection apparatus |
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