METHOD OF MINING THICK SLOPING SEAMS,申请号SU19874205376-传众专利搜索

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发明名称	METHOD OF MINING THICK SLOPING SEAMS
摘要
申请公布号	SU1444520(A1)	申请公布日期	1988.12.15
申请号	SU19874205376	申请日期	1987.03.04
申请人	URALSKIJ VNI PI GALURGII	发明人	VILESOV VALERIJ V,SU
分类号	E21C41/20;E21C41/00	主分类号	E21C41/20
代理机构		代理人
主权项
地址

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