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Cleaning unit, process cartridge using cleaning unit, and image forming apparatus using cleaning unit Grant 7,415,237 - Okoshi August 19, 2 | 2008-08-19 |
Process cartridge supported by image forming apparatus main body and image forming apparatus using the same Grant 7,400,845 - Okoshi July 15, 2 | 2008-07-15 |
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Cleaning unit, process cartridge using cleaning unit, and image forming apparatus using cleaning unit App 20060216083 - Okoshi; Takeshi | 2006-09-28 |
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