Shutter structure for motion picture machines,申请号US19330669522-传众专利搜索

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发明名称	Shutter structure for motion picture machines
摘要
申请公布号	US2068259(A)	申请公布日期	1937.01.19
申请号	US19330669522	申请日期	1933.05.05
申请人	JOHAN BERGGREN PER	发明人	BERGGREN PER JOHAN
分类号	G03B9/10	主分类号	G03B9/10
代理机构		代理人
主权项
地址

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