METHOD OF OPENING-UP OUTBURST-PRONE SEAM,申请号SU19884462932-传众专利搜索

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发明名称	METHOD OF OPENING-UP OUTBURST-PRONE SEAM
摘要
申请公布号	SU1606712(A1)	申请公布日期	1990.11.15
申请号	SU19884462932	申请日期	1988.07.20
申请人	INST GEOTEKHNICHESKOI MEKHANI	发明人	POTURAEV VALENTIN N,SU;MYAKENKIJ VALENTIN I,SU;MINEEV SERGEJ P,SU
分类号	E21F5/00;E21C41/18;(IPC1-7):E21F5/00	主分类号	E21F5/00
代理机构		代理人
主权项
地址

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