Composite electro-acoustic transducer configuration,申请号US19580731768-传众专利搜索

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发明名称	Composite electro-acoustic transducer configuration
摘要
申请公布号	US2998535(A)	申请公布日期	1961.08.29
申请号	US19580731768	申请日期	1958.04.29
申请人	ACOUSTICA ASSOCIATES, INC.	发明人	CHURCH DONALD R.;ROD ROBERT L.
分类号	G10K11/02	主分类号	G10K11/02
代理机构		代理人
主权项
地址

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