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发明名称
摘要
申请公布号
DE4104321(C2)
申请公布日期
1992.08.06
申请号
DE19914104321
申请日期
1991.02.13
申请人
RICOH CO., LTD., TOKIO/TOKYO, JP
发明人
SOGA, SETSUO, TOKIO/TOKYO, JP;WATABE, KATSUJI, FUJIMI, SAITAMA, JP
分类号
G03G15/00;B01D53/66;G03G21/00;G03G21/20
主分类号
G03G15/00
代理机构
代理人
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