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Document processing system
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Patent number 5,402,250
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Issue date Mar 28, 1995
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Ricoh Company, Ltd.
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Koki Ishida
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G06 - COMPUTING CALCULATING COUNTING
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Document processing apparatus
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Patent number 5,367,618
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Issue date Nov 22, 1994
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Ricoh Company, Ltd.
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Koki Ishida
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G06 - COMPUTING CALCULATING COUNTING
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Facsimile adapter unit
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Patent number 5,041,918
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Issue date Aug 20, 1991
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Ricoh Company, Ltd.
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Koki Ishida
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H04 - ELECTRIC COMMUNICATION TECHNIQUE