Magnetostrictive submarine signal transmitter or receiver,申请号US19440549972-传众专利搜索

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发明名称	Magnetostrictive submarine signal transmitter or receiver
摘要
申请公布号	US2438925(A)	申请公布日期	1948.04.06
申请号	US19440549972	申请日期	1944.08.18
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	KRANTZ HUBERT K.
分类号	B06B1/08	主分类号	B06B1/08
代理机构		代理人
主权项
地址

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