US Patent 6872931 Optical input device for measuring finger movement
Is a
Date Filed
November 6, 2001
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Date of Patent
March 29, 2005
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Patent Application Number
10169461
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Patent Inventor Names
Aldegonda Lucia Weijers
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Christoph Dobrusskin
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Martin Dieter Liess
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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