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RGB value calculation device
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Patent number 10,222,263
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Issue date Mar 5, 2019
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Yazaki Corporation
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Yasuyuki Shigezane
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Colour specification
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Patent number 7,221,373
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Issue date May 22, 2007
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J & P Coats Limited
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Robert Dornan
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G01 - MEASURING TESTING
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Artists' color display system
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Patent number 7,180,524
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Issue date Feb 20, 2007
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Dale Axelrod
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Color chart
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Patent number 5,842,866
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Issue date Dec 1, 1998
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Dong Lein Chow
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B44 - DECORATIVE ARTS
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Texture matching device
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Patent number 5,452,081
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Issue date Sep 19, 1995
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International Business Machines Corporation
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Friedrich Wotzka
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G01 - MEASURING TESTING
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Color standard arrangement
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Patent number 5,026,286
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Issue date Jun 25, 1991
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Gerriet Hellwig
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Color selecting apparatus
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Patent number 4,973,253
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Issue date Nov 27, 1990
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Soi Charles W. Perry Design Works, Inc.
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Lynn H. Shook
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Color selection apparatus
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Patent number 4,665,394
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Issue date May 12, 1987
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Taubmans Industries Limited
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Peter R. Coles
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G01 - MEASURING TESTING
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Color computer wheel
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Patent number 4,399,353
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Issue date Aug 16, 1983
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James K. Adkins
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G06 - COMPUTING CALCULATING COUNTING
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Color calculator
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Patent number 4,241,520
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Issue date Dec 30, 1980
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Thomas K. Norton
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B44 - DECORATIVE ARTS
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3764646
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Patent number 3,764,646
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Issue date Oct 9, 1973
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL