FR1267874A - Method and device for detecting crossing locating - Google Patents

Method and device for detecting crossing locating

Info

Publication number
FR1267874A
FR1267874A FR829877A FR829877A FR1267874A FR 1267874 A FR1267874 A FR 1267874A FR 829877 A FR829877 A FR 829877A FR 829877 A FR829877 A FR 829877A FR 1267874 A FR1267874 A FR 1267874A
Authority
FR
France
Prior art keywords
detecting crossing
crossing locating
locating
detecting
crossing
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
FR829877A
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.)
WATTSON SA
Original Assignee
WATTSON SA
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 WATTSON SA filed Critical WATTSON SA
Priority to FR829877A priority Critical patent/FR1267874A/en
Application granted granted Critical
Publication of FR1267874A publication Critical patent/FR1267874A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/169—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using cable transducer means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR829877A 1960-06-14 1960-06-14 Method and device for detecting crossing locating Expired FR1267874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR829877A FR1267874A (en) 1960-06-14 1960-06-14 Method and device for detecting crossing locating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR829877A FR1267874A (en) 1960-06-14 1960-06-14 Method and device for detecting crossing locating

Publications (1)

Publication Number Publication Date
FR1267874A true FR1267874A (en) 1961-07-28

Family

ID=8733316

Family Applications (1)

Application Number Title Priority Date Filing Date
FR829877A Expired FR1267874A (en) 1960-06-14 1960-06-14 Method and device for detecting crossing locating

Country Status (1)

Country Link
FR (1) FR1267874A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191180A1 (en) * 1972-06-28 1974-02-01 Philips Nv

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191180A1 (en) * 1972-06-28 1974-02-01 Philips Nv

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