FR780221A - Improvement in winding devices, more particularly in film take-up reels - Google Patents
Improvement in winding devices, more particularly in film take-up reelsInfo
- Publication number
- FR780221A FR780221A FR780221DA FR780221A FR 780221 A FR780221 A FR 780221A FR 780221D A FR780221D A FR 780221DA FR 780221 A FR780221 A FR 780221A
- Authority
- FR
- France
- Prior art keywords
- reels
- improvement
- film take
- winding devices
- winding
- 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
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/43—Driving mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US780221XA | 1933-11-11 | 1933-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR780221A true FR780221A (en) | 1935-04-20 |
Family
ID=22141437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR780221D Expired FR780221A (en) | 1933-11-11 | 1934-10-26 | Improvement in winding devices, more particularly in film take-up reels |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR780221A (en) |
-
1934
- 1934-10-26 FR FR780221D patent/FR780221A/en not_active Expired
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