Framing mechanism for motion picture machines,申请号US19330669521-传众专利搜索

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发明名称	Framing mechanism for motion picture machines
摘要
申请公布号	US2049042(A)	申请公布日期	1936.07.28
申请号	US19330669521	申请日期	1933.05.05
申请人	JOHAN BERGGREN PER	发明人	BERGGREN PER JOHAN
分类号	G03B21/46	主分类号	G03B21/46
代理机构		代理人
主权项
地址

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