FR945137A - Improvements to photographic shutters - Google Patents
Improvements to photographic shuttersInfo
- Publication number
- FR945137A FR945137A FR945137DA FR945137A FR 945137 A FR945137 A FR 945137A FR 945137D A FR945137D A FR 945137DA FR 945137 A FR945137 A FR 945137A
- Authority
- FR
- France
- Prior art keywords
- photographic shutters
- shutters
- photographic
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/36—Sliding rigid plate
- G03B9/40—Double plate
- G03B9/42—Double plate with adjustable slot; with mechanism controlling relative movement of plates to form slot
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US945137XA | 1940-01-04 | 1940-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR945137A true FR945137A (en) | 1949-04-26 |
Family
ID=22245606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR945137D Expired FR945137A (en) | 1940-01-04 | 1945-08-03 | Improvements to photographic shutters |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR945137A (en) |
-
1945
- 1945-08-03 FR FR945137D patent/FR945137A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR949230A (en) | Improvements to photographic emulsions | |
FR949229A (en) | New photographic emulsions | |
FR878099A (en) | Improvements to photographic films | |
FR949228A (en) | photographic emulsions | |
FR945149A (en) | photographic emulsions | |
FR889282A (en) | Photographic lens | |
FR844866A (en) | Photographic developers | |
FR945137A (en) | Improvements to photographic shutters | |
FR868755A (en) | Improvements to photographic shutters | |
FR870126A (en) | Improvements to cameras | |
FR54820E (en) | Improvements to photographic films | |
FR821693A (en) | Improvements to photographic shutters | |
FR867473A (en) | Improvements to photographic enlargers | |
FR869887A (en) | Photographic viewfinder | |
FR851912A (en) | Improvements to photographic emulsions | |
FR945135A (en) | Photographic film | |
FR867389A (en) | Improvements to photographic shutters | |
FR907557A (en) | Improvements to cinematographic devices | |
FR940904A (en) | Improvements to photographic emulsions | |
FR851736A (en) | Improvements to photographic shutters | |
FR851185A (en) | Improvements to photographic shutters | |
FR856365A (en) | Improvements to photographic shutters | |
FR871322A (en) | Photographic shutter | |
FR874777A (en) | Improvements to cameras | |
FR940907A (en) | Photographic shutter |