METHOD OF DETERMINING GAS PERMEABILITY OF COAL,申请号SU19742051605-传众专利搜索

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发明名称	METHOD OF DETERMINING GAS PERMEABILITY OF COAL
摘要
申请公布号	SU825944(A1)	申请公布日期	1981.04.30
申请号	SU19742051605	申请日期	1974.08.05
申请人	INST GORNOGO DELA IM A.A. SKOCHINSKOGO	发明人	SERGEEV IVAN V,SU;ZABURDYAEV VIKTOR S,SU
分类号	E21C39/00;(IPC1-7):E21C39/00	主分类号	E21C39/00
代理机构		代理人
主权项
地址

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