METHOD OF CONTROLLING HARD-TO-CAVE ROOF,申请号SU19813312648-传众专利搜索

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发明名称	METHOD OF CONTROLLING HARD-TO-CAVE ROOF
摘要
申请公布号	SU1089264(A1)	申请公布日期	1984.04.30
申请号	SU19813312648	申请日期	1981.07.06
申请人	VNI PK UGOLNYJ INSTITUT	发明人	GLADKIJ NIKOLAJ L,SU;LI KLIM D,SU;SHARIPOV NIL KH,SU;LIGAJ VALERIJ I,SU;KHAMIEV MARGULAN KH,SU
分类号	(IPC1-7):E21C41/04	主分类号	(IPC1-7):E21C41/04
代理机构		代理人
主权项
地址

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