METHOD FOR ESTABLISHING PROTECTIVE PILLARS IN MAIN TRANSPORT WORKINGS,申请号SU19914916389-传众专利搜索

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发明名称	METHOD FOR ESTABLISHING PROTECTIVE PILLARS IN MAIN TRANSPORT WORKINGS
摘要
申请公布号	RU1833470(C)	申请公布日期	1993.08.07
申请号	SU19914916389	申请日期	1991.03.05
申请人	DNEPROPETROVSKIJ GORNYJ INSTITUT IM.ARTEMA	发明人	DOROSHEV VALENTIN P;ALFEROV ALEKSANDR V;GRISHKO NIKOLAJ T;KNYAZEV MIKHAIL V;SHMIGOL ANATOLIJ V;STYTSIN VIKTOR I
分类号	E21C41/18	主分类号	E21C41/18
代理机构		代理人
主权项
地址

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