NL7018551A - - Google Patents

Info

Publication number
NL7018551A
NL7018551A NL7018551A NL7018551A NL7018551A NL 7018551 A NL7018551 A NL 7018551A NL 7018551 A NL7018551 A NL 7018551A NL 7018551 A NL7018551 A NL 7018551A NL 7018551 A NL7018551 A NL 7018551A
Authority
NL
Netherlands
Application number
NL7018551A
Other versions
NL148728B (en
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
Priority to NL7018551A priority Critical patent/NL148728B/en
Publication of NL7018551A publication Critical patent/NL7018551A/xx
Publication of NL148728B publication Critical patent/NL148728B/en

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
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
NL7018551A 1970-12-21 1970-12-21 ALARM SYSTEM. NL148728B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7018551A NL148728B (en) 1970-12-21 1970-12-21 ALARM SYSTEM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7018551A NL148728B (en) 1970-12-21 1970-12-21 ALARM SYSTEM.

Publications (2)

Publication Number Publication Date
NL7018551A true NL7018551A (en) 1972-06-23
NL148728B NL148728B (en) 1976-02-16

Family

ID=19811851

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7018551A NL148728B (en) 1970-12-21 1970-12-21 ALARM SYSTEM.

Country Status (1)

Country Link
NL (1) NL148728B (en)

Also Published As

Publication number Publication date
NL148728B (en) 1976-02-16

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