Telephone system for high tension transmission lines,申请号US19300501961-传众专利搜索

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发明名称	Telephone system for high tension transmission lines
摘要
申请公布号	US1852902(A)	申请公布日期	1932.04.05
申请号	US19300501961	申请日期	1930.12.12
申请人	ROCKWELL ROBERT B H	发明人	ROCKWELL ROBERT B. H.
分类号	H01B11/00	主分类号	H01B11/00
代理机构		代理人
主权项
地址

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