Improvements relating to twin lens photographic cameras,申请号GB19500016974-传众专利搜索

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发明名称	Improvements relating to twin lens photographic cameras
摘要
申请公布号	GB705371(A)	申请公布日期	1954.03.10
申请号	GB19500016974	申请日期	1950.07.07
申请人	JOHN EWART WENDELL HOLMES	发明人
分类号	G03B13/20	主分类号	G03B13/20
代理机构		代理人
主权项
地址

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