FR688466A - Electric fire extinguisher that works on all devices on time, such as alarm clocks and others - Google Patents

Electric fire extinguisher that works on all devices on time, such as alarm clocks and others

Info

Publication number
FR688466A
FR688466A FR688466DA FR688466A FR 688466 A FR688466 A FR 688466A FR 688466D A FR688466D A FR 688466DA FR 688466 A FR688466 A FR 688466A
Authority
FR
France
Prior art keywords
works
devices
time
fire extinguisher
electric fire
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
French (fr)
Inventor
Paul-Baptiste Bouchet
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 FR688466A publication Critical patent/FR688466A/en
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)
FR688466D 1930-01-20 1930-01-20 Electric fire extinguisher that works on all devices on time, such as alarm clocks and others Expired FR688466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR688466T 1930-01-20

Publications (1)

Publication Number Publication Date
FR688466A true FR688466A (en) 1930-08-23

Family

ID=9026732

Family Applications (1)

Application Number Title Priority Date Filing Date
FR688466D Expired FR688466A (en) 1930-01-20 1930-01-20 Electric fire extinguisher that works on all devices on time, such as alarm clocks and others

Country Status (1)

Country Link
FR (1) FR688466A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959741C (en) * 1952-10-22 1957-03-14 E H Helmut Junghans Dr Ing Electric time switch with controlled mercury switching tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959741C (en) * 1952-10-22 1957-03-14 E H Helmut Junghans Dr Ing Electric time switch with controlled mercury switching tube

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