FR579298A - - Google Patents
Info
- Publication number
- FR579298A FR579298A FR579298DA FR579298A FR 579298 A FR579298 A FR 579298A FR 579298D A FR579298D A FR 579298DA FR 579298 A FR579298 A FR 579298A
- Authority
- FR
- France
- 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
- G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/101—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
- G04C3/107—Controlling frequency or amplitude of the oscillating system
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR579298A true FR579298A (de) | 1924-10-13 |
Family
ID=1539518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR579298D Expired FR579298A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR579298A (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2929196A (en) * | 1956-03-12 | 1960-03-22 | Bulova Watch Co Inc | Electric timepiece |
| US2971323A (en) * | 1953-06-19 | 1961-02-14 | Bulova Watch Co Inc | Electronically-controlled timepiece |
| US3167905A (en) * | 1963-07-16 | 1965-02-02 | Bulova Watch Co Inc | Motion transformers for electronically controlled timepiece |
| US3204133A (en) * | 1962-01-31 | 1965-08-31 | Straumann Inst Ag | Electric reciprocating drive with motion conversion |
| US3277644A (en) * | 1965-06-08 | 1966-10-11 | Jeco Kk | Tuning fork timepiece |
| DE1235823B (de) * | 1963-07-16 | 1967-03-02 | Bulova Watch Co Inc | Verbesserungen an mechanischen UEbertragungs-vorrichtungen elektrisch gesteuerter Uhren |
-
0
- FR FR579298D patent/FR579298A/fr not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2971323A (en) * | 1953-06-19 | 1961-02-14 | Bulova Watch Co Inc | Electronically-controlled timepiece |
| US2929196A (en) * | 1956-03-12 | 1960-03-22 | Bulova Watch Co Inc | Electric timepiece |
| US3204133A (en) * | 1962-01-31 | 1965-08-31 | Straumann Inst Ag | Electric reciprocating drive with motion conversion |
| US3167905A (en) * | 1963-07-16 | 1965-02-02 | Bulova Watch Co Inc | Motion transformers for electronically controlled timepiece |
| DE1235823B (de) * | 1963-07-16 | 1967-03-02 | Bulova Watch Co Inc | Verbesserungen an mechanischen UEbertragungs-vorrichtungen elektrisch gesteuerter Uhren |
| US3277644A (en) * | 1965-06-08 | 1966-10-11 | Jeco Kk | Tuning fork timepiece |