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Electro-optical device
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Patent number 4,016,094
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Issue date Apr 5, 1977
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Matsushita Electric Industrial Co., Ltd.
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Masahide Tsukamoto
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Electro-optic device
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Patent number 3,977,769
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Issue date Aug 31, 1976
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Matsushita Electric Industrial Co., Ltd.
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Masahide Tsukamoto
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Electro-optic device
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Patent number 3,973,830
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Issue date Aug 10, 1976
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Matsushita Electric Industrial Co., Ltd.
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Masahide Tsukamoto
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...