Electrical high frequency signaling system,申请号US19370171826-传众专利搜索

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发明名称	Electrical high frequency signaling system
摘要
申请公布号	US2195717(A)	申请公布日期	1940.04.02
申请号	US19370171826	申请日期	1937.10.30
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	CORK EDWARD CECIL;PAWSEY JOSEPH LADE
分类号	C03B27/052;H01P5/02;H03H7/38	主分类号	C03B27/052
代理机构		代理人
主权项
地址

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