FR673634A - Perfectionnements aux montres électriques - Google Patents
Perfectionnements aux montres électriquesInfo
- Publication number
- FR673634A FR673634A FR673634DA FR673634A FR 673634 A FR673634 A FR 673634A FR 673634D A FR673634D A FR 673634DA FR 673634 A FR673634 A FR 673634A
- Authority
- FR
- France
- Prior art keywords
- electric watches
- watches
- electric
- 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
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/061—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling contacts and mechanically driving the gear-train
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR673634T | 1928-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR673634A true FR673634A (fr) | 1930-01-17 |
Family
ID=9018237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR673634D Expired FR673634A (fr) | 1928-07-10 | 1928-07-10 | Perfectionnements aux montres électriques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR673634A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631423A (en) * | 1945-07-11 | 1953-03-17 | Gen Motors Corp | Electric clock |
US2671864A (en) * | 1949-07-27 | 1954-03-09 | Lip Horlogerie | Electromagnetic oscillatory motor |
US2865163A (en) * | 1952-04-15 | 1958-12-23 | Elgin Nat Watch Co | Electrically-powered time device |
US2900786A (en) * | 1956-05-31 | 1959-08-25 | Bulova Watch Co Inc | Timepiece arrangement |
-
1928
- 1928-07-10 FR FR673634D patent/FR673634A/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631423A (en) * | 1945-07-11 | 1953-03-17 | Gen Motors Corp | Electric clock |
US2671864A (en) * | 1949-07-27 | 1954-03-09 | Lip Horlogerie | Electromagnetic oscillatory motor |
US2865163A (en) * | 1952-04-15 | 1958-12-23 | Elgin Nat Watch Co | Electrically-powered time device |
US2900786A (en) * | 1956-05-31 | 1959-08-25 | Bulova Watch Co Inc | Timepiece arrangement |
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