FR508781A - Perfectionnements aux cinématographes - Google Patents
Perfectionnements aux cinématographesInfo
- Publication number
- FR508781A FR508781A FR508781A FR508781DA FR508781A FR 508781 A FR508781 A FR 508781A FR 508781 A FR508781 A FR 508781A FR 508781D A FR508781D A FR 508781DA FR 508781 A FR508781 A FR 508781A
- Authority
- FR
- France
- Prior art keywords
- cinematographs
- 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
- G03B1/00—Film strip handling
- G03B1/18—Moving film strip by means which act on the film between the ends thereof
- G03B1/20—Acting means
- G03B1/34—Beaters
-
- 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 |
---|---|---|---|
US508781XA | 1916-07-26 | 1916-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR508781A true FR508781A (fr) | 1920-10-22 |
Family
ID=21968044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR508781A Expired FR508781A (fr) | 1916-07-26 | 1920-01-20 | Perfectionnements aux cinématographes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR508781A (fr) |
-
1920
- 1920-01-20 FR FR508781A patent/FR508781A/fr not_active Expired
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