FR697115A - Improvements to cameras - Google Patents
Improvements to camerasInfo
- Publication number
- FR697115A FR697115A FR697115DA FR697115A FR 697115 A FR697115 A FR 697115A FR 697115D A FR697115D A FR 697115DA FR 697115 A FR697115 A FR 697115A
- Authority
- FR
- France
- Prior art keywords
- cameras
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US697115XA | 1929-06-07 | 1929-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR697115A true FR697115A (en) | 1931-01-12 |
Family
ID=22090736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR697115D Expired FR697115A (en) | 1929-06-07 | 1930-06-05 | Improvements to cameras |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR697115A (en) |
-
1930
- 1930-06-05 FR FR697115D patent/FR697115A/en not_active Expired
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