Improvements in photographic shutters,申请号GB19540007938-传众专利搜索

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发明名称	Improvements in photographic shutters
摘要
申请公布号	GB779759(A)	申请公布日期	1957.07.24
申请号	GB19540007938	申请日期	1954.03.18
申请人	ALFRED GAUTHIER G.M.B.H.	发明人
分类号	G03B9/22	主分类号	G03B9/22
代理机构		代理人
主权项
地址

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