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Device for driving rotary body
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Patent number 4,794,420
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Issue date Dec 27, 1988
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Ricoh Company, Ltd.
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Michihito Ohashi
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Blade cleaning device
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Patent number 4,595,280
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Issue date Jun 17, 1986
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Ricoh Company, Ltd.
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Misao Tanzawa
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Cleaning blade unit
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Patent number 4,451,140
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Issue date May 29, 1984
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Ricoh Company, Ltd.
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Kinzi Saito
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY