FR689484A - Shutter for cinema projection devices - Google Patents
Shutter for cinema projection devicesInfo
- Publication number
- FR689484A FR689484A FR689484DA FR689484A FR 689484 A FR689484 A FR 689484A FR 689484D A FR689484D A FR 689484DA FR 689484 A FR689484 A FR 689484A
- Authority
- FR
- France
- Prior art keywords
- shutter
- projection devices
- cinema projection
- cinema
- devices
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR689484T | 1930-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR689484A true FR689484A (en) | 1930-09-08 |
Family
ID=9027293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR689484D Expired FR689484A (en) | 1930-02-05 | 1930-02-05 | Shutter for cinema projection devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR689484A (en) |
-
1930
- 1930-02-05 FR FR689484D patent/FR689484A/en not_active Expired
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