Means for ascertaining the integrity of two-line conductors,申请号US19320592251-传众专利搜索

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发明名称	Means for ascertaining the integrity of two-line conductors
摘要
申请公布号	US1909711(A)	申请公布日期	1933.05.16
申请号	US19320592251	申请日期	1932.02.11
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	O'HAGAN BERNARD E.
分类号	B61L3/22	主分类号	B61L3/22
代理机构		代理人
主权项
地址

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