METHOD OF LOCALLY DEMETHANISING THE LOW-METHANE UNDERGROUND MINE WORKINGS,申请号PL19940304260-传众专利搜索

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发明名称	METHOD OF LOCALLY DEMETHANISING THE LOW-METHANE UNDERGROUND MINE WORKINGS
摘要
申请公布号	PL174101(B1)	申请公布日期	1998.06.30
申请号	PL19940304260	申请日期	1994.07.11
申请人	RYBNICKA SP.WEGLOWA SA KOPALNIA WEGLA KAMIENNEGO "JANKOWICE"	发明人	NOWAK EMIL;HERMAN JAN;KUBEK FRANCISZEK;SPYRKA LESZEK;FOCHTMAN WITOLD
分类号	E21F7/00	主分类号	E21F7/00
代理机构		代理人
主权项
地址

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