DK122022B - Tyverialarm. - Google Patents

Tyverialarm.

Info

Publication number
DK122022B
DK122022B DK471969A DK471969A DK122022B DK 122022 B DK122022 B DK 122022B DK 471969 A DK471969 A DK 471969A DK 471969 A DK471969 A DK 471969A DK 122022 B DK122022 B DK 122022B
Authority
DK
Denmark
Prior art keywords
burglar alarm
burglar
alarm
Prior art date
Application number
DK471969A
Other languages
English (en)
Inventor
H Eakin
Original Assignee
H Eakin
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 H Eakin filed Critical H Eakin
Publication of DK122022B publication Critical patent/DK122022B/da

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
DK471969A 1968-09-04 1969-09-03 Tyverialarm. DK122022B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75722868A 1968-09-04 1968-09-04
US83782769A 1969-06-30 1969-06-30

Publications (1)

Publication Number Publication Date
DK122022B true DK122022B (da) 1972-01-03

Family

ID=27116352

Family Applications (1)

Application Number Title Priority Date Filing Date
DK471969A DK122022B (da) 1968-09-04 1969-09-03 Tyverialarm.

Country Status (7)

Country Link
BE (1) BE738419A (da)
CH (1) CH519759A (da)
DK (1) DK122022B (da)
FR (1) FR2022151A1 (da)
GB (1) GB1275604A (da)
NL (1) NL149929B (da)
SE (1) SE341731B (da)

Also Published As

Publication number Publication date
FR2022151A1 (da) 1970-07-31
BE738419A (da) 1970-03-04
NL6913457A (da) 1970-03-06
DE1944546B2 (de) 1975-10-23
GB1275604A (en) 1972-05-24
NL149929B (nl) 1976-06-15
DE1944546A1 (de) 1970-09-24
CH519759A (fr) 1972-02-29
SE341731B (da) 1972-01-10

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