CA968167A - Electric clock - Google Patents

Electric clock

Info

Publication number
CA968167A
CA968167A CA164,485A CA164485A CA968167A CA 968167 A CA968167 A CA 968167A CA 164485 A CA164485 A CA 164485A CA 968167 A CA968167 A CA 968167A
Authority
CA
Canada
Prior art keywords
electric clock
clock
electric
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
CA164,485A
Other versions
CA164485S (en
Inventor
Hideo Hara
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA968167A publication Critical patent/CA968167A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00Indicating the time optically by electric means
    • G04C17/0075Indicating the time optically by electric means by drums or drum-like devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Stopping Of Electric Motors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
CA164,485A 1972-02-26 1973-02-23 Electric clock Expired CA968167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972023729U JPS48100170U (en) 1972-02-26 1972-02-26

Publications (1)

Publication Number Publication Date
CA968167A true CA968167A (en) 1975-05-27

Family

ID=12118390

Family Applications (1)

Application Number Title Priority Date Filing Date
CA164,485A Expired CA968167A (en) 1972-02-26 1973-02-23 Electric clock

Country Status (4)

Country Link
US (1) US3808791A (en)
JP (1) JPS48100170U (en)
CA (1) CA968167A (en)
GB (1) GB1397667A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336402Y2 (en) * 1974-01-17 1978-09-05
US6275449B1 (en) * 1998-08-07 2001-08-14 Richard Wang World clock with synchronous display

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134220A (en) * 1961-05-16 1964-05-26 Dichl Electric clock
US3451210A (en) * 1966-07-01 1969-06-24 Benrus Corp System for maintaining oscillations in an electric timing mechanism having an oscillatory element
US3568430A (en) * 1968-07-11 1971-03-09 Hamilton Watch Co Resistance bridge controlled timekeeping device
US3601975A (en) * 1969-04-23 1971-08-31 Timex Corp Horological movement utilizing a radioactivity detector and source
US3643419A (en) * 1969-07-14 1972-02-22 California Inst Of Techn Apparatus for fine adjustment of signal frequency

Also Published As

Publication number Publication date
GB1397667A (en) 1975-06-18
US3808791A (en) 1974-05-07
JPS48100170U (en) 1973-11-26

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