FR690809A - Glass for watchmaking - Google Patents
Glass for watchmakingInfo
- Publication number
- FR690809A FR690809A FR690809DA FR690809A FR 690809 A FR690809 A FR 690809A FR 690809D A FR690809D A FR 690809DA FR 690809 A FR690809 A FR 690809A
- Authority
- FR
- France
- Prior art keywords
- watchmaking
- glass
- 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
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/004—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR690809T | 1930-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR690809A true FR690809A (en) | 1930-09-26 |
Family
ID=9030973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR690809D Expired FR690809A (en) | 1930-02-28 | 1930-02-28 | Glass for watchmaking |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR690809A (en) |
-
1930
- 1930-02-28 FR FR690809D patent/FR690809A/en not_active Expired
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