Film framing device,申请号US19340739208-传众专利搜索

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发明名称	Film framing device
摘要
申请公布号	US2037454(A)	申请公布日期	1936.04.14
申请号	US19340739208	申请日期	1934.08.10
申请人	INTERNATIONAL PROJECTOR CORPORATION	发明人	BOECKING EWALD
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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