FR51878E - Knurling machine - Google Patents
Knurling machineInfo
- Publication number
- FR51878E FR51878E FR51878DA FR51878E FR 51878 E FR51878 E FR 51878E FR 51878D A FR51878D A FR 51878DA FR 51878 E FR51878 E FR 51878E
- Authority
- FR
- France
- Prior art keywords
- knurling machine
- knurling
- machine
- 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
- G03B27/02—Exposure apparatus for contact printing
- G03B27/04—Copying apparatus without a relative movement between the original and the light source during exposure, e.g. printing frame or printing box
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR51878T | 1941-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR51878E true FR51878E (en) | 1943-05-24 |
Family
ID=8686635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR51878D Expired FR51878E (en) | 1941-12-19 | 1941-12-19 | Knurling machine |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR51878E (en) |
-
1941
- 1941-12-19 FR FR51878D patent/FR51878E/en not_active Expired
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