CA957161A - Tuning-fork type electronic clock - Google Patents
Tuning-fork type electronic clockInfo
- Publication number
- CA957161A CA957161A CA146,163A CA146163A CA957161A CA 957161 A CA957161 A CA 957161A CA 146163 A CA146163 A CA 146163A CA 957161 A CA957161 A CA 957161A
- Authority
- CA
- Canada
- Prior art keywords
- tuning
- type electronic
- fork type
- electronic clock
- clock
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16083571A | 1971-07-08 | 1971-07-08 | |
US22169072A | 1972-01-28 | 1972-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA957161A true CA957161A (en) | 1974-11-05 |
Family
ID=26857264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA146,163A Expired CA957161A (en) | 1971-07-08 | 1972-06-30 | Tuning-fork type electronic clock |
Country Status (7)
Country | Link |
---|---|
CA (1) | CA957161A (en) |
CH (2) | CH991372A4 (en) |
DE (1) | DE2233583C3 (en) |
FR (1) | FR2147978B1 (en) |
GB (1) | GB1384618A (en) |
HK (1) | HK21876A (en) |
NL (1) | NL7209072A (en) |
-
1972
- 1972-06-29 NL NL7209072A patent/NL7209072A/xx not_active Application Discontinuation
- 1972-06-30 CA CA146,163A patent/CA957161A/en not_active Expired
- 1972-07-03 CH CH991372D patent/CH991372A4/xx unknown
- 1972-07-03 CH CH991372A patent/CH557056A/xx unknown
- 1972-07-05 GB GB3155572A patent/GB1384618A/en not_active Expired
- 1972-07-06 FR FR7224415A patent/FR2147978B1/fr not_active Expired
- 1972-07-07 DE DE19722233583 patent/DE2233583C3/en not_active Expired
-
1976
- 1976-04-08 HK HK21876A patent/HK21876A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2147978B1 (en) | 1977-04-01 |
CH991372A4 (en) | 1974-06-14 |
HK21876A (en) | 1976-04-15 |
FR2147978A1 (en) | 1973-03-11 |
CH557056A (en) | 1974-12-13 |
DE2233583B2 (en) | 1977-10-27 |
GB1384618A (en) | 1975-02-19 |
DE2233583C3 (en) | 1978-06-15 |
DE2233583A1 (en) | 1973-01-25 |
NL7209072A (en) | 1973-01-10 |
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