BIDIRECTIONAL AUTOMATIC LINE BLOCKING SYSTEM IN PARTICULAR FOR LONG STATION-TO-STATION DISTANCESKIROVKI,A OSOBENNO DLJA MEZHSTANCIONNOGO RASSTOJANIJA BOLSHOJJ PROTJAZHENNOSTI,申请号PL19790217605-传众专利搜索

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发明名称	BIDIRECTIONAL AUTOMATIC LINE BLOCKING SYSTEM IN PARTICULAR FOR LONG STATION-TO-STATION DISTANCESKIROVKI,A OSOBENNO DLJA MEZHSTANCIONNOGO RASSTOJANIJA BOLSHOJJ PROTJAZHENNOSTI
摘要
申请公布号	PL117870(B2)	申请公布日期	1981.08.31
申请号	PL19790217605	申请日期	1979.08.07
申请人		发明人
分类号	B61L;B61L23/22;G08G;(IPC1-7):B61L23/22	主分类号	B61L
代理机构		代理人
主权项
地址

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