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Matthew Humphreys
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Madison, WI, US
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last 30 patents
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Patent Application
Optical and smart card identification reader
Publication number
20020030581
Publication date
Mar 14, 2002
Martin J. Janiak
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
Integrating biometric devices in time and attendance applications
Publication number
20020030582
Publication date
Mar 14, 2002
Mark Depp
G07 - CHECKING-DEVICES