Apparatus for echo distance measurement,申请号US19410404052-传众专利搜索

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发明名称	Apparatus for echo distance measurement
摘要
申请公布号	US2408458(A)	申请公布日期	1946.10.01
申请号	US19410404052	申请日期	1941.07.25
申请人	SUBMARINE SIGNAL COMPANY	发明人	JR. EDWIN E. TURNER,
分类号	G01S1/72	主分类号	G01S1/72
代理机构		代理人
主权项
地址

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