Title:
System and method for preventing pilferage by detection of magnetic fields
United States Patent 3292080
Inventors:
Trikilis, Emmanuel M.
Publication Date:
12/13/1966
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Assignee:
Trikilis, Emmanuel M.
Primary Class:
340/572.1
International Classes:
G08B13/24
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US Patent References:
2446977Art of detecting tramp material
2306584Demagnetization of magnetic bodies