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Electrostatic recording apparatus
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Patent number 4,875,063
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Issue date Oct 17, 1989
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Ricoh Company, Ltd.
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Hiroyuki Idenawa
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Developing device
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Patent number 4,814,816
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Issue date Mar 21, 1989
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Ricoh Company, Ltd.
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Hiroyuki Idenawa
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Copying apparatus
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Patent number 4,583,834
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Issue date Apr 22, 1986
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Ricoh Company, Ltd.
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Nachio Seko
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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