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Variable electroconductivity material
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Patent number 5,192,631
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Issue date Mar 9, 1993
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Dai Nippon Insatsu Kabushiki Kaisha
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Eiichi Inoue
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Variable electroconductivity material
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Patent number 4,997,593
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Issue date Mar 5, 1991
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Dai Nippon Insatsu Kabushiki Kaisha
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Eiichi Inoue
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Magnetic card
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Patent number 4,132,350
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Issue date Jan 2, 1979
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Dai Nippon Insatsu Kabushiki Kaisha
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Tetsuo Kubota
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Printing ink compositions
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Patent number 4,115,329
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Issue date Sep 19, 1978
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Dai Nippon Printing Co., Ltd.
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Atsumi Noshiro
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...