METHOD AND APPARATUS FOR LOOSENING AND/OR EXCAVATING COAL FORMATIONS BY MEANS OF AIR BREAKING,申请号HU19920004149-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR LOOSENING AND/OR EXCAVATING COAL FORMATIONS BY MEANS OF AIR BREAKING
摘要
申请公布号	HUH3719(A)	申请公布日期	1995.01.30
申请号	HU19920004149	申请日期	1992.12.29
申请人	GERGOE,GYOERGY;VIRAGH,ISTVANNE;VARBIRO,GABORNE	发明人	GERGOE,GYOERGY;VIRAGH,ISTVANNE;VARBIRO,GABORNE
分类号	E21C27/00;(IPC1-7):E21C27/00	主分类号	E21C27/00
代理机构		代理人
主权项
地址

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