,申请号FRD1579920-传众专利搜索

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发明名称
摘要
申请公布号	FR1579920(A)	申请公布日期	1969.08.29
申请号	FRD1579920	申请日期	1968.09.13
申请人		发明人
分类号	G03B21/11;G03B21/43	主分类号	G03B21/11
代理机构		代理人
主权项
地址

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