FR677799A - Improvements to photographic magnifiers - Google Patents
Improvements to photographic magnifiersInfo
- Publication number
- FR677799A FR677799A FR677799DA FR677799A FR 677799 A FR677799 A FR 677799A FR 677799D A FR677799D A FR 677799DA FR 677799 A FR677799 A FR 677799A
- Authority
- FR
- France
- Prior art keywords
- magnifiers
- photographic
- photographic magnifiers
- 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
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/326—Enlargers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR677799T | 1929-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR677799A true FR677799A (en) | 1930-03-14 |
Family
ID=9020674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR677799D Expired FR677799A (en) | 1929-07-03 | 1929-07-03 | Improvements to photographic magnifiers |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR677799A (en) |
-
1929
- 1929-07-03 FR FR677799D patent/FR677799A/en not_active Expired
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