CASING PERFORATION METHOD AND APPARATUS,申请号US19770836758-传众专利搜索

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发明名称	CASING PERFORATION METHOD AND APPARATUS
摘要
申请公布号	US4113016(A)	申请公布日期	1978.09.12
申请号	US19770836758	申请日期	1977.09.26
申请人	TROTT, DONALD E.	发明人	TROTT, DONALD E.
分类号	E21B43/1185;E21B43/119;(IPC1-7):E21B29/00	主分类号	E21B43/1185
代理机构		代理人
主权项
地址

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