Acoustic method and system,申请号US19520300113-传众专利搜索

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发明名称	Acoustic method and system
摘要
申请公布号	US2759555(A)	申请公布日期	1956.08.21
申请号	US19520300113	申请日期	1952.07.21
申请人	BOLT, BERANEK AND NEWMAN INC.	发明人	BARUCH JORDAN J.
分类号	G10K11/172	主分类号	G10K11/172
代理机构		代理人
主权项
地址

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