APPARATUS FOR DRILLING WELLS,申请号SU19813338228-传众专利搜索

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发明名称	APPARATUS FOR DRILLING WELLS
摘要
申请公布号	SU994065(A1)	申请公布日期	1983.02.07
申请号	SU19813338228	申请日期	1981.09.07
申请人	KT BYURO S O PROIZV PRI I STROITELSTVA ARKHITEKTURY GOSSTROYA BSSR	发明人	BEZVERKHIJ VYACHESLAV M,SU
分类号	E21B7/24;(IPC1-7):E21B7/24	主分类号	E21B7/24
代理机构		代理人
主权项
地址

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