Focusing device for a photographic enlarger,申请号US19630301507-传众专利搜索

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发明名称	Focusing device for a photographic enlarger
摘要
申请公布号	US3244068(A)	申请公布日期	1966.04.05
申请号	US19630301507	申请日期	1963.08.12
申请人	DURST A. G. FABRIK FOTOTECHNISCHER APPARATE	发明人	BARBIERI SIGISFREDO
分类号	G03B27/36	主分类号	G03B27/36
代理机构		代理人
主权项
地址

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