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发明名称
摘要
申请公布号	DE2922742(C2)	申请公布日期	1982.08.05
申请号	DE19792922742	申请日期	1979.06.05
申请人	RICOH CO., LTD., TOKYO, JP	发明人	FUJIOKA, YOSHISATO, HIGASHIKURUME, TOKYO, JP
分类号	G02B9/62;G02B11/34;G02B13/00;G02B13/24;(IPC1-7):G02B9/64	主分类号	G02B9/62
代理机构		代理人
主权项
地址

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