Underwater sound reflector,申请号US19550514039-传众专利搜索

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发明名称	Underwater sound reflector
摘要
申请公布号	US2839735(A)	申请公布日期	1958.06.17
申请号	US19550514039	申请日期	1955.06.08
申请人	HUGHES AIRCRAFT COMPANY	发明人	ATTA LESTER CLARE VAN
分类号	G10K11/20	主分类号	G10K11/20
代理机构		代理人
主权项
地址

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