Electric shunting means for railway running gear,申请号US19470753869-传众专利搜索

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发明名称	Electric shunting means for railway running gear
摘要
申请公布号	US2488785(A)	申请公布日期	1949.11.22
申请号	US19470753869	申请日期	1947.06.11
申请人	THE BUDD COMPANY	发明人	WATTER MICHAEL
分类号	B61L1/18	主分类号	B61L1/18
代理机构		代理人
主权项
地址

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