FR772885A - Contact device for electric timepieces - Google Patents
Contact device for electric timepiecesInfo
- Publication number
- FR772885A FR772885A FR772885DA FR772885A FR 772885 A FR772885 A FR 772885A FR 772885D A FR772885D A FR 772885DA FR 772885 A FR772885 A FR 772885A
- Authority
- FR
- France
- Prior art keywords
- contact device
- electric timepieces
- timepieces
- electric
- contact
- 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
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 |
---|---|---|---|
CH772885X | 1933-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR772885A true FR772885A (en) | 1934-11-07 |
Family
ID=4535555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR772885D Expired FR772885A (en) | 1933-05-04 | 1934-05-04 | Contact device for electric timepieces |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR772885A (en) |
-
1934
- 1934-05-04 FR FR772885D patent/FR772885A/en not_active Expired
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