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Developing apparatus
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Patent number 4,696,255
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Issue date Sep 29, 1987
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Ricoh Company, Ltd.
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Hidetoshi Yano
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Color recording method
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Patent number 4,521,502
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Issue date Jun 4, 1985
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Ricoh Company, Ltd.
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Katsuo Sakai
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Toner charging apparatus
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Patent number 4,119,060
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Issue date Oct 10, 1978
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Ricoh Co., Ltd.
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Nobuo Mochizuki
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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