FR720231A - Réveille-matin, allumant l'électricité en sonnant - Google Patents

Réveille-matin, allumant l'électricité en sonnant

Info

Publication number
FR720231A
FR720231A FR720231DA FR720231A FR 720231 A FR720231 A FR 720231A FR 720231D A FR720231D A FR 720231DA FR 720231 A FR720231 A FR 720231A
Authority
FR
France
Prior art keywords
ringing
electricity
turning
alarm clock
alarm
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
Other languages
English (en)
Inventor
Joseph Otrin
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 filed Critical
Application granted granted Critical
Publication of FR720231A publication Critical patent/FR720231A/fr
Expired legal-status Critical Current

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
    • G04C21/22—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 arbor of a mechanical alarm work

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR720231D 1931-06-04 1931-06-04 Réveille-matin, allumant l'électricité en sonnant Expired FR720231A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR720231T 1931-06-04

Publications (1)

Publication Number Publication Date
FR720231A true FR720231A (fr) 1932-02-17

Family

ID=9092371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720231D Expired FR720231A (fr) 1931-06-04 1931-06-04 Réveille-matin, allumant l'électricité en sonnant

Country Status (1)

Country Link
FR (1) FR720231A (fr)

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