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FR1020401A - Improvements to electrical detectors comprising resistors with variable resistivity - Google Patents

Improvements to electrical detectors comprising resistors with variable resistivity

Info

Publication number
FR1020401A
FR1020401A FR1020401DA FR1020401A FR 1020401 A FR1020401 A FR 1020401A FR 1020401D A FR1020401D A FR 1020401DA FR 1020401 A FR1020401 A FR 1020401A
Authority
FR
France
Prior art keywords
resistors
variable resistivity
electrical detectors
detectors
electrical
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ACHAT SOC POUR
Original Assignee
ACHAT SOC POUR
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 by ACHAT SOC POUR filed Critical ACHAT SOC POUR
Application granted granted Critical
Publication of FR1020401A publication Critical patent/FR1020401A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
FR1020401D 1950-06-06 1950-06-06 Improvements to electrical detectors comprising resistors with variable resistivity Expired FR1020401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1020401T 1950-06-06

Publications (1)

Publication Number Publication Date
FR1020401A true FR1020401A (en) 1953-02-06

Family

ID=9576303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1020401D Expired FR1020401A (en) 1950-06-06 1950-06-06 Improvements to electrical detectors comprising resistors with variable resistivity

Country Status (1)

Country Link
FR (1) FR1020401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101229B (en) * 1956-11-12 1961-03-02 Reich Robert W Electric fire alarm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101229B (en) * 1956-11-12 1961-03-02 Reich Robert W Electric fire alarm

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