FR940348A - Perfectionnement aux appareils de projection - Google Patents
Perfectionnement aux appareils de projectionInfo
- Publication number
- FR940348A FR940348A FR940348DA FR940348A FR 940348 A FR940348 A FR 940348A FR 940348D A FR940348D A FR 940348DA FR 940348 A FR940348 A FR 940348A
- Authority
- FR
- France
- Prior art keywords
- improvement
- projection devices
- projection
- 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
- G03B1/00—Film strip handling
- G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR940348T | 1947-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR940348A true FR940348A (fr) | 1948-12-09 |
Family
ID=9461395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR940348D Expired FR940348A (fr) | 1947-02-05 | 1947-02-05 | Perfectionnement aux appareils de projection |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR940348A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2617327A (en) * | 1950-09-09 | 1952-11-11 | Vry Corp De | Film pressure shoe and aperture plate assembly for motion-picture projecting apparatus |
US2732755A (en) * | 1956-01-31 | Cinematograph | ||
US2996951A (en) * | 1957-01-16 | 1961-08-22 | Debrie Andre Victor Le Clement | Guiide means for cinematographic films |
-
1947
- 1947-02-05 FR FR940348D patent/FR940348A/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732755A (en) * | 1956-01-31 | Cinematograph | ||
US2617327A (en) * | 1950-09-09 | 1952-11-11 | Vry Corp De | Film pressure shoe and aperture plate assembly for motion-picture projecting apparatus |
US2996951A (en) * | 1957-01-16 | 1961-08-22 | Debrie Andre Victor Le Clement | Guiide means for cinematographic films |
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