Arrangement of sound transmitters and sound receivers on ships,申请号US19280319831-传众专利搜索

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发明名称	Arrangement of sound transmitters and sound receivers on ships
摘要
申请公布号	US1872946(A)	申请公布日期	1932.08.23
申请号	US19280319831	申请日期	1928.11.16
申请人	ELECTROACUSTIC GESELLSCHAFT MIT BESCHRANKTER HAFTUNG	发明人	HECHT HEINRICH
分类号	G10K11/00	主分类号	G10K11/00
代理机构		代理人
主权项
地址

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