FR1031567A - Improvements to alarm devices to automatically signal and locate the place where an attempted break-in or the start of a fire occurs - Google Patents

Improvements to alarm devices to automatically signal and locate the place where an attempted break-in or the start of a fire occurs

Info

Publication number
FR1031567A
FR1031567A FR1031567DA FR1031567A FR 1031567 A FR1031567 A FR 1031567A FR 1031567D A FR1031567D A FR 1031567DA FR 1031567 A FR1031567 A FR 1031567A
Authority
FR
France
Prior art keywords
locate
place
fire occurs
alarm devices
attempted break
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
Natale Marzi
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 FR1031567A publication Critical patent/FR1031567A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/012—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using recorded signals, e.g. speech

Landscapes

  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
FR1031567D 1949-04-02 1950-03-30 Improvements to alarm devices to automatically signal and locate the place where an attempted break-in or the start of a fire occurs Expired FR1031567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT291958X 1949-04-02

Publications (1)

Publication Number Publication Date
FR1031567A true FR1031567A (en) 1953-06-24

Family

ID=11226533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1031567D Expired FR1031567A (en) 1949-04-02 1950-03-30 Improvements to alarm devices to automatically signal and locate the place where an attempted break-in or the start of a fire occurs

Country Status (4)

Country Link
BE (1) BE494881A (en)
CH (1) CH291958A (en)
DE (1) DE830466C (en)
FR (1) FR1031567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234874A (en) * 1978-11-08 1980-11-18 Inventional/Security Development Corp. Alarm system and method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962587C (en) * 1952-11-15 1957-04-25 Wilhelm Kengelbach Fire, accident and safety alarm system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234874A (en) * 1978-11-08 1980-11-18 Inventional/Security Development Corp. Alarm system and method thereof

Also Published As

Publication number Publication date
CH291958A (en) 1953-07-15
BE494881A (en)
DE830466C (en) 1952-02-04

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