Title:
Burglar-alarm
United States Patent 1399170


Inventors:
Vandevelde, Paul V.
Application Number:
US35140620A
Publication Date:
12/06/1921
Filing Date:
01/14/1920
Assignee:
Vandevelde, Paul V.
Primary Class:
Other Classes:
340/542
International Classes:
E05B45/08
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