Noise controlled sound reproducing system,申请号US19650442688-传众专利搜索

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发明名称	Noise controlled sound reproducing system
摘要
申请公布号	US3410958(A)	申请公布日期	1968.11.12
申请号	US19650442688	申请日期	1965.03.25
申请人	EXECUTONE INC.	发明人	COHEN ABRAHAM B.
分类号	H03G3/32;H04R27/00	主分类号	H03G3/32
代理机构		代理人
主权项
地址

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