FR560312A - Cinématographe - Google Patents
CinématographeInfo
- Publication number
- FR560312A FR560312A FR560312DA FR560312A FR 560312 A FR560312 A FR 560312A FR 560312D A FR560312D A FR 560312DA FR 560312 A FR560312 A FR 560312A
- Authority
- FR
- France
- Prior art keywords
- cinematograph
- 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
- G03B21/16—Cooling; Preventing overheating
-
- 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 |
---|---|---|---|
DE560312X | 1922-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR560312A true FR560312A (fr) | 1923-10-02 |
Family
ID=6565884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR560312D Expired FR560312A (fr) | 1922-01-25 | 1922-12-23 | Cinématographe |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR560312A (fr) |
-
1922
- 1922-12-23 FR FR560312D patent/FR560312A/fr not_active Expired
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