FR55308E - - Google Patents

Info

Publication number
FR55308E
FR55308E FR55308DA FR55308E FR 55308 E FR55308 E FR 55308E FR 55308D A FR55308D A FR 55308DA FR 55308 E FR55308 E FR 55308E
Authority
FR
France
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
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR55308E publication Critical patent/FR55308E/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00Producing acoustic time signals by electrical means
    • G04C21/16Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/20Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR55308D Expired FR55308E (ja)

Publications (1)

Publication Number Publication Date
FR55308E true FR55308E (ja) 1952-01-04

Family

ID=1363464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR55308D Expired FR55308E (ja)

Country Status (1)

Country Link
FR (1) FR55308E (ja)

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