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Color-matching article
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Issue date Jan 3, 2006
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3M Innovative Properties Company
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Jeffrey R. Janssen
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B44 - DECORATIVE ARTS
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Color harmony scale
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Patent number 4,199,877
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Issue date Apr 29, 1980
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C. Itoh Fashion System Co., Ltd.
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Tatehito Akiyama
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3653771
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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3088227
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G01 - MEASURING TESTING
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3088226
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Patent number 3,088,226
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Issue date May 7, 1963
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G01 - MEASURING TESTING
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3070905
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Patent number 3,070,905
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G01 - MEASURING TESTING
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Issue date Jun 20, 1961
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS