FR709909A - Watchglass - Google Patents
WatchglassInfo
- Publication number
- FR709909A FR709909A FR709909DA FR709909A FR 709909 A FR709909 A FR 709909A FR 709909D A FR709909D A FR 709909DA FR 709909 A FR709909 A FR 709909A
- Authority
- FR
- France
- Prior art keywords
- watchglass
- 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
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
- G04D3/06—Devices for shaping or setting watch glasses
- G04D3/062—Shaping without chipping away, e.g. by hot pressing or by punching out the whole piece from a plate
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US709909XA | 1930-01-24 | 1930-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR709909A true FR709909A (en) | 1931-08-14 |
Family
ID=22098597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR709909D Expired FR709909A (en) | 1930-01-24 | 1931-01-24 | Watchglass |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR709909A (en) |
-
1931
- 1931-01-24 FR FR709909D patent/FR709909A/en not_active Expired
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