Anti-theft protection systems responsive to bath resonance and magnetization
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United States of America Patent
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Feb 21, 1995
Grant Date -
N/A
app pub date -
Dec 6, 1993
filing date -
Dec 11, 1992
priority date (Note) -
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Abstract
Tagged articles are protected against theft by a system responding to articles having affixed thereto both a resonant circuit and a magnetizable strip. In one embodiment, a label alarm detector responds only to the presence of a resonant circuit or alternatively, only to the presence of a magnetizable strip. In a further embodiment, a label alarm detector responds to both presence of a resonant circuit and presence of a magnetizable strip.
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