A WELL PENETRATOR.,申请号AR19860306063-传众专利搜索

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发明名称	A WELL PENETRATOR.
摘要
申请公布号	AR243964(A1)	申请公布日期	1993.09.30
申请号	AR19860306063	申请日期	1986.12.02
申请人	HERMAN J. SCHELLSTEDE	发明人
分类号	E21B43/11;E21B49/06;(IPC1-7):E21B43/11	主分类号	E21B43/11
代理机构		代理人
主权项
地址

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