FR644916A - - Google Patents
Info
- Publication number
- FR644916A FR644916A FR644916DA FR644916A FR 644916 A FR644916 A FR 644916A FR 644916D A FR644916D A FR 644916DA FR 644916 A FR644916 A FR 644916A
- 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
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- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
FR644916A true FR644916A (zh) | 1927-10-16 |
Family
ID=1542772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR644916D Expired FR644916A (zh) |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR644916A (zh) |
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0
- FR FR644916D patent/FR644916A/fr not_active Expired