FR696280A - Safety device for cinematographs - Google Patents
Safety device for cinematographsInfo
- Publication number
- FR696280A FR696280A FR696280DA FR696280A FR 696280 A FR696280 A FR 696280A FR 696280D A FR696280D A FR 696280DA FR 696280 A FR696280 A FR 696280A
- Authority
- FR
- France
- Prior art keywords
- cinematographs
- safety device
- safety
- 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
- G03B21/18—Fire preventing or extinguishing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR696280T | 1930-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR696280A true FR696280A (en) | 1930-12-29 |
Family
ID=9046579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR696280D Expired FR696280A (en) | 1930-05-26 | 1930-05-26 | Safety device for cinematographs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR696280A (en) |
-
1930
- 1930-05-26 FR FR696280D patent/FR696280A/en not_active Expired
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