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BE444517A - - Google Patents
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BE444517A - - Google Patents

Info

Publication number
BE444517A
BE444517A BE444517DA BE444517A BE 444517 A BE444517 A BE 444517A BE 444517D A BE444517D A BE 444517DA BE 444517 A BE444517 A BE 444517A
Authority
BE
Belgium
Prior art keywords
spring
alarm clock
contact
bell
ground
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE444517A publication Critical patent/BE444517A/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/20—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm
    • G04C21/24—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm put into action by the spring of a mechanical alarm work

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
BE444517D BE444517A (sr)

Publications (1)

Publication Number Publication Date
BE444517A true BE444517A (sr)

Family

ID=101155

Family Applications (1)

Application Number Title Priority Date Filing Date
BE444517D BE444517A (sr)

Country Status (1)

Country Link
BE (1) BE444517A (sr)

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