FR983012A - - Google Patents
Info
- Publication number
- FR983012A FR983012A FR983012DA FR983012A FR 983012 A FR983012 A FR 983012A FR 983012D A FR983012D A FR 983012DA FR 983012 A FR983012 A FR 983012A
- Authority
- FR
- France
- 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
- G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
- G03B9/18—More than two members
- G03B9/20—More than two members each moving in a single direction first to open and then to reclose
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR983012A true FR983012A (en) | 1951-06-18 |
Family
ID=1566916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR983012D Expired FR983012A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR983012A (en) |
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0
- FR FR983012D patent/FR983012A/fr not_active Expired