Electrically operated photographic shutter,申请号US19470774251-传众专利搜索

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发明名称	Electrically operated photographic shutter
摘要
申请公布号	US2572229(A)	申请公布日期	1951.10.23
申请号	US19470774251	申请日期	1947.09.16
申请人	GENERAL ANILINE & FILM CORPORATION	发明人	WILLCOX FREDERICK P.
分类号	G03B9/08	主分类号	G03B9/08
代理机构		代理人
主权项
地址

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