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William D. Green
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Sunland, CA, US
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last 30 patents
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Patent Grant
Controlled authentic document recognition equipment
Patent number
4,748,480
Issue date
May 31, 1988
Xerox Corporation
Paul F. Jacobs
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Method and apparatus for the prevention of unauthorized copying of...
Patent number
4,738,901
Issue date
Apr 19, 1988
Xerox Corporation
Joel R. Finkel
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for the prevention of unauthorized copying of...
Patent number
4,678,322
Issue date
Jul 7, 1987
Xerox Corporation
Joel R. Finkel
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY