Spherical acoustical lens system for focusing underwater sound,申请号US19540441954-传众专利搜索

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发明名称	Spherical acoustical lens system for focusing underwater sound
摘要
申请公布号	US3017608(A)	申请公布日期	1962.01.16
申请号	US19540441954	申请日期	1954.07.07
申请人	TOULIS WILLIAM J	发明人	TOULIS WILLIAM J.
分类号	G10K11/30	主分类号	G10K11/30
代理机构		代理人
主权项
地址

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