Lupe zum Gebrauch an fotografischen Kameras,申请号DE1950M002965-传众专利搜索

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发明名称	Lupe zum Gebrauch an fotografischen Kameras
摘要
申请公布号	DE864194(C)	申请公布日期	1953.01.22
申请号	DE1950M002965	申请日期	1950.04.22
申请人	MICHEL JOHANN	发明人	MICHEL JOHANN
分类号	G03B19/12	主分类号	G03B19/12
代理机构		代理人
主权项
地址

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