FR1429786A - Improvements to alarm systems - Google Patents

Improvements to alarm systems

Info

Publication number
FR1429786A
FR1429786A FR12082A FR12082A FR1429786A FR 1429786 A FR1429786 A FR 1429786A FR 12082 A FR12082 A FR 12082A FR 12082 A FR12082 A FR 12082A FR 1429786 A FR1429786 A FR 1429786A
Authority
FR
France
Prior art keywords
alarm systems
alarm
systems
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
FR12082A
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.)
PROT ENGINEERS
Original Assignee
PROT ENGINEERS
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 PROT ENGINEERS filed Critical PROT ENGINEERS
Priority to FR12082A priority Critical patent/FR1429786A/en
Application granted granted Critical
Publication of FR1429786A publication Critical patent/FR1429786A/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
    • G08B25/10—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 wireless transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR12082A 1965-04-06 1965-04-06 Improvements to alarm systems Expired FR1429786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR12082A FR1429786A (en) 1965-04-06 1965-04-06 Improvements to alarm systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR12082A FR1429786A (en) 1965-04-06 1965-04-06 Improvements to alarm systems

Publications (1)

Publication Number Publication Date
FR1429786A true FR1429786A (en) 1966-02-25

Family

ID=8575722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR12082A Expired FR1429786A (en) 1965-04-06 1965-04-06 Improvements to alarm systems

Country Status (1)

Country Link
FR (1) FR1429786A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050299A1 (en) * 1980-10-20 1982-04-28 Gilles Marcel Morey Detection method and system, particularly for surveillance installations or automatisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050299A1 (en) * 1980-10-20 1982-04-28 Gilles Marcel Morey Detection method and system, particularly for surveillance installations or automatisms

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