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United States of America Patent
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Oct 26, 2004
Grant Date -
Feb 26, 2004
app pub date -
Apr 30, 2003
filing date -
Oct 30, 2000
priority date (Note) -
Expired
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Abstract
A portable beacon (8) for deterring damaging access to a deactivatable hazard comprises means for deactivating the hazard in the event of actual or impending damaging access to the hazard, deterrence means (12) and sensors (13, 23, 24) for sensing when damaging access is impending or actually occurring.
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