GB1338947A - - Google Patents
Info
- Publication number
- GB1338947A GB1338947A GB5389171A GB5389171A GB1338947A GB 1338947 A GB1338947 A GB 1338947A GB 5389171 A GB5389171 A GB 5389171A GB 5389171 A GB5389171 A GB 5389171A GB 1338947 A GB1338947 A GB 1338947A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery
- capacitor
- watch
- drive
- frequency divider
- 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
- G04C3/08—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
- G04C3/108—Driving circuits
-
- 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
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromechanical Clocks (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/502,134 US3943697A (en) | 1970-12-14 | 1974-08-30 | Electronic watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11079570 | 1970-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1338947A true GB1338947A (enrdf_load_stackoverflow) | 1973-11-28 |
Family
ID=14544817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5389171A Expired GB1338947A (enrdf_load_stackoverflow) | 1970-12-14 | 1971-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1338947A (enrdf_load_stackoverflow) |
-
1971
- 1971-11-19 GB GB5389171A patent/GB1338947A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |