Electric coupling circuits,申请号US19300476542-传众专利搜索

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发明名称	Electric coupling circuits
摘要
申请公布号	US1878653(A)	申请公布日期	1932.09.20
申请号	US19300476542	申请日期	1930.08.20
申请人	HAZELTINE CORPORATION	发明人	WHEELER HAROLD A.
分类号	H03H7/01;H03J3/06	主分类号	H03H7/01
代理机构		代理人
主权项
地址

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