DEVICE FOR TREATING STRATUM AREA ADJOINING TO A DRILLED HOLE,申请号RO19890139115-传众专利搜索

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发明名称	DEVICE FOR TREATING STRATUM AREA ADJOINING TO A DRILLED HOLE
摘要
申请公布号	RO104597(B1)	申请公布日期	1994.08.20
申请号	RO19890139115	申请日期	1989.04.06
申请人	INTREPRINDEREA DE CAROTAJ SI PERFORARE, PLOIESTI, JUDETUL PRAHOVA	发明人	ILIESCU IOAN;ISTRATE MARCEL;TRAIAN TRAIAN
分类号	E21B43/22;E21B43/24;(IPC1-7):E21B43/22	主分类号	E21B43/22
代理机构		代理人
主权项
地址

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