Sound film reproducing installation comprising two projectors each having an optical sound head and a magnetic sound head,申请号US19620232221-传众专利搜索

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发明名称	Sound film reproducing installation comprising two projectors each having an optical sound head and a magnetic sound head
摘要
申请公布号	US3238006(A)	申请公布日期	1966.03.01
申请号	US19620232221	申请日期	1962.10.22
申请人	NORTH AMERICAN PHILIPS CO., INC.	发明人	JANSEN WILLEM JOHAN MARIA
分类号	G03B31/00	主分类号	G03B31/00
代理机构		代理人
主权项
地址

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