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Tamper-evident electric paper
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Patent number 6,419,618
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Issue date Jul 16, 2002
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Xerox Corporation
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Jock D. MacKinlay
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Tamper-evident electric paper
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Patent number 6,303,211
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Issue date Oct 16, 2001
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Xerox Corporation
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Jock D. MacKinlay
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Editing copying machine
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Patent number 4,734,789
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Issue date Mar 29, 1988
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Xerox Corporation
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Craig A. Smith
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Copier job recovery system
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Patent number 4,190,354
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Issue date Feb 26, 1980
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Xerox Corporation
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Craig A. Smith
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Manual sorter
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Patent number 4,011,952
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Issue date Mar 15, 1977
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Xerox Corporation
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Craig A. Smith
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING