FR402322A - Security cinematographic device - Google Patents
Security cinematographic deviceInfo
- Publication number
- FR402322A FR402322A FR402322DA FR402322A FR 402322 A FR402322 A FR 402322A FR 402322D A FR402322D A FR 402322DA FR 402322 A FR402322 A FR 402322A
- Authority
- FR
- France
- Prior art keywords
- security
- cinematographic
- cinematographic device
- security cinematographic
- 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 |
---|---|---|---|
FR402322T | 1909-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR402322A true FR402322A (en) | 1909-10-05 |
Family
ID=1447055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR402322D Expired FR402322A (en) | 1909-04-23 | 1909-04-23 | Security cinematographic device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR402322A (en) |
-
1909
- 1909-04-23 FR FR402322D patent/FR402322A/en not_active Expired
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