FR1078683A - Dispositif téléphonique d'alarme - Google Patents

Dispositif téléphonique d'alarme

Info

Publication number
FR1078683A
FR1078683A FR1078683DA FR1078683A FR 1078683 A FR1078683 A FR 1078683A FR 1078683D A FR1078683D A FR 1078683DA FR 1078683 A FR1078683 A FR 1078683A
Authority
FR
France
Prior art keywords
alarm device
telephone alarm
telephone
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
Clement Risoud
Georges Thery
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 FR1078683A publication Critical patent/FR1078683A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR1078683D 1953-04-11 1953-04-11 Dispositif téléphonique d'alarme Expired FR1078683A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1078683T 1953-04-11

Publications (1)

Publication Number Publication Date
FR1078683A true FR1078683A (fr) 1954-11-22

Family

ID=9608834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1078683D Expired FR1078683A (fr) 1953-04-11 1953-04-11 Dispositif téléphonique d'alarme

Country Status (1)

Country Link
FR (1) FR1078683A (fr)

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