Supervisory means for communicating channels,申请号US19390302908-传众专利搜索

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发明名称	Supervisory means for communicating channels
摘要
申请公布号	US2224736(A)	申请公布日期	1940.12.10
申请号	US19390302908	申请日期	1939.11.04
申请人	WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY	发明人	LEYLAND SIMEON C.
分类号	H02H1/00;H04J1/16	主分类号	H02H1/00
代理机构		代理人
主权项
地址

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