METHOD OF UTILIZING CARBON DIOXIDE ESCAPING FROM HARD COAL MINE WORKINGS,申请号PL19800223665-传众专利搜索

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发明名称	METHOD OF UTILIZING CARBON DIOXIDE ESCAPING FROM HARD COAL MINE WORKINGS
摘要
申请公布号	PL132525(B1)	申请公布日期	1985.03.30
申请号	PL19800223665	申请日期	1980.04.21
申请人		发明人
分类号	E21C;E21F;E21F7/00;(IPC1-7):E21F7/00	主分类号	E21C
代理机构		代理人
主权项
地址

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