Focal plane shutter of variable aperture type,申请号US19380184981-传众专利搜索

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发明名称	Focal plane shutter of variable aperture type
摘要
申请公布号	US2195330(A)	申请公布日期	1940.03.26
申请号	US19380184981	申请日期	1938.01.14
申请人	THE FOLMER GRAFLEX CORPORATION	发明人	HINELINE EDSON S.
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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