FR818408A - Improvements made to watch movements - Google Patents
Improvements made to watch movementsInfo
- Publication number
- FR818408A FR818408A FR818408DA FR818408A FR 818408 A FR818408 A FR 818408A FR 818408D A FR818408D A FR 818408DA FR 818408 A FR818408 A FR 818408A
- Authority
- FR
- France
- Prior art keywords
- improvements made
- watch movements
- watch
- movements
- 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
- G04B21/00—Indicating the time by acoustic means
- G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
- G04B21/04—Hour wheels; Racks or rakes; Snails or similar control mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR818408T | 1937-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR818408A true FR818408A (en) | 1937-09-25 |
Family
ID=9268869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR818408D Expired FR818408A (en) | 1937-02-26 | 1937-02-26 | Improvements made to watch movements |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR818408A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2654339A (en) * | 1949-12-19 | 1953-10-06 | Sperling John | Indicator for working position of agricultural tools |
-
1937
- 1937-02-26 FR FR818408D patent/FR818408A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2654339A (en) * | 1949-12-19 | 1953-10-06 | Sperling John | Indicator for working position of agricultural tools |
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