Route check scheme for railway code communication signaling system,申请号US19540477978-传众专利搜索

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发明名称	Route check scheme for railway code communication signaling system
摘要
申请公布号	US2903572(A)	申请公布日期	1959.09.08
申请号	US19540477978	申请日期	1954.12.28
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	WELLS ROBERT F.;PICKELL CLARK A.
分类号	B61L7/08;B61L21/06	主分类号	B61L7/08
代理机构		代理人
主权项
地址

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