System of carrier current signaling on power lines,申请号US19280257024-传众专利搜索

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发明名称	System of carrier current signaling on power lines
摘要
申请公布号	US1836114(A)	申请公布日期	1931.12.15
申请号	US19280257024	申请日期	1928.02.25
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	GREEN ESTILL L.
分类号	H04B3/56	主分类号	H04B3/56
代理机构		代理人
主权项
地址

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