DEVICE FOR THERMOMECHANICAL DRILLING OF WELLS,申请号SU19894638036-传众专利搜索

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发明名称	DEVICE FOR THERMOMECHANICAL DRILLING OF WELLS
摘要
申请公布号	SU1620579(A1)	申请公布日期	1991.01.15
申请号	SU19894638036	申请日期	1989.01.17
申请人	KURDZKIYI ROLITEKNNISNEDZKIYI INDZTITUT	发明人	KOVELEV NIKOLAYI DZ,SU;ROROV VALENTIN M,SU;RANINA TATYIANA V,SU
分类号	E21B7/14;E21C37/16	主分类号	E21B7/14
代理机构		代理人
主权项
地址

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