Improvements in or relating to twin-lens mirror reflex photographic cameras,申请号GB19610045429-传众专利搜索

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发明名称	Improvements in or relating to twin-lens mirror reflex photographic cameras
摘要
申请公布号	GB975420(A)	申请公布日期	1964.11.18
申请号	GB19610045429	申请日期	1961.12.19
申请人	FRANKE & HEIDECKE,G.M.B.H.	发明人
分类号	G03B13/20;G03B17/12	主分类号	G03B13/20
代理机构		代理人
主权项
地址

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