Sound recording and reproducing system with recorded control signal,申请号US19470720398-传众专利搜索

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发明名称	Sound recording and reproducing system with recorded control signal
摘要
申请公布号	US2529097(A)	申请公布日期	1950.11.07
申请号	US19470720398	申请日期	1947.01.06
申请人	W. A. PALMER FILMS, INC.	发明人	MULLIN JOHN T.
分类号	G03B31/06;G11B3/00;G11B5/00	主分类号	G03B31/06
代理机构		代理人
主权项
地址

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