Security device having multiple security detection features
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United States of America Patent
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Aug 16, 2005
Grant Date -
Feb 7, 2002
app pub date -
Jun 15, 2001
filing date -
Dec 2, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A security device, such as a security thread, uses multiple security detection features provided by combining metal and metal/magnetic security features on a carrier substrate. The security detection features basically comprise an optionally repeating pattern of discrete metal/magnetic indicia and discrete metal or metal-dot formed indicia. The security detection features may also include at least one metal strip extending along the length of the carrier substrate and/or a plurality of metal dots located on metal-free portions of at least one surface of the substrate.
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