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Toner density control device
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Patent number 4,975,742
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Issue date Dec 4, 1990
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Mita Industrial Co., Ltd.
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Tomio Tada
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Developer cartridge
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Patent number D312272
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Issue date Nov 20, 1990
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Mita Industrial Co., Ltd.
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Junichi Takamatsu
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D18 - Printing and office machinery
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Image-forming machine
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Patent number 4,908,668
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Issue date Mar 13, 1990
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Mita Industrial Co., Ltd.
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Junichi Takamatsu
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Device for circulating developer
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Patent number 4,894,688
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Issue date Jan 16, 1990
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Mita Industrial Co., Ltd.
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Masami Taniguchi
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Image-forming machine
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Patent number 4,875,077
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Issue date Oct 17, 1989
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Mita Industrial Co., Ltd.
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Junichi Takamatsu
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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