Amorphous antipilferage marker
Number of patents in Portfolio can not be more than 2000
United States of America
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Sep 26, 1995
Grant Date -
N/A
app pub date -
Apr 22, 1993
filing date -
Feb 4, 1983
priority date (Note) -
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Abstract
A magnetic theft detection system marker is adapted to generate magnetic fields at frequencies that (1) are harmonically related to an incident magnetic field applied within an interrogation zone and (2) have selected tones that provide the marker with signal identity. The marker is an elongated, ductile strip of amorphous ferromagnetic material having a value of magnetostriction near zero that retains its signal identity under stress.
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