CA638939A - Defeat resistant burglar alarm contact - Google Patents

Defeat resistant burglar alarm contact

Info

Publication number
CA638939A
CA638939A CA638939A CA638939DA CA638939A CA 638939 A CA638939 A CA 638939A CA 638939 A CA638939 A CA 638939A CA 638939D A CA638939D A CA 638939DA CA 638939 A CA638939 A CA 638939A
Authority
CA
Canada
Prior art keywords
burglar alarm
alarm contact
defeat
resistant
defeat resistant
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
CA638939A
Inventor
T. Sawicki Alfred
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.)
American District Telegraph Co
Original Assignee
American District Telegraph Co
Publication date
Application granted granted Critical
Publication of CA638939A publication Critical patent/CA638939A/en
Expired legal-status Critical Current

Links

CA638939A Defeat resistant burglar alarm contact Expired CA638939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA638939T

Publications (1)

Publication Number Publication Date
CA638939A true CA638939A (en) 1962-03-27

Family

ID=35917449

Family Applications (1)

Application Number Title Priority Date Filing Date
CA638939A Expired CA638939A (en) Defeat resistant burglar alarm contact

Country Status (1)

Country Link
CA (1) CA638939A (en)

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