Apparatus for coupling ultrasonic waves,申请号US19520268220-传众专利搜索

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发明名称	Apparatus for coupling ultrasonic waves
摘要
申请公布号	US2751783(A)	申请公布日期	1956.06.26
申请号	US19520268220	申请日期	1952.01.25
申请人	ELECTROCIRCUITS INCORPORATED	发明人	ERDMAN DONALD C.
分类号	G10K11/02	主分类号	G10K11/02
代理机构		代理人
主权项
地址

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