Harmonic producer system,申请号US19370156706-传众专利搜索

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发明名称	Harmonic producer system
摘要
申请公布号	US2146053(A)	申请公布日期	1939.02.07
申请号	US19370156706	申请日期	1937.07.31
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	CAMPBELL MARK E.;WEST JULIAN M.
分类号	H03B19/03	主分类号	H03B19/03
代理机构		代理人
主权项
地址

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