Track rail contactor,申请号US19350024276-传众专利搜索

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发明名称	Track rail contactor
摘要
申请公布号	US2110591(A)	申请公布日期	1938.03.08
申请号	US19350024276	申请日期	1935.05.31
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	CRAGO PAUL H.
分类号	B61L13/04	主分类号	B61L13/04
代理机构		代理人
主权项
地址

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