CA957161A - Tuning-fork type electronic clock - Google Patents

Tuning-fork type electronic clock

Info

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
Application number
CA146,163A
Other versions
CA146163S (en
Inventor
Egbert Van Haaften
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bulova Watch Co Inc
Original Assignee
Bulova Watch Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bulova Watch Co Inc filed Critical Bulova Watch Co Inc
Application granted granted Critical
Publication of CA957161A publication Critical patent/CA957161A/en
Expired legal-status Critical Current

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
CA146,163A 1971-07-08 1972-06-30 Tuning-fork type electronic clock Expired CA957161A (en)

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) CH557056A (en)
DE (1) DE2233583C3 (en)
FR (1) FR2147978B1 (en)
GB (1) GB1384618A (en)
HK (1) HK21876A (en)
NL (1) NL7209072A (en)

Also Published As

Publication number Publication date
NL7209072A (en) 1973-01-10
FR2147978B1 (en) 1977-04-01
DE2233583A1 (en) 1973-01-25
GB1384618A (en) 1975-02-19
DE2233583B2 (en) 1977-10-27
FR2147978A1 (en) 1973-03-11
DE2233583C3 (en) 1978-06-15
CH557056A (en) 1974-12-13
CH991372A4 (en) 1974-06-14
HK21876A (en) 1976-04-15

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