DEVICE FOR USE IN COMPLETION OF AN OIL OR GAS WELL,申请号GB19750006171-传众专利搜索

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发明名称	DEVICE FOR USE IN COMPLETION OF AN OIL OR GAS WELL
摘要
申请公布号	GB1483183(A)	申请公布日期	1977.08.17
申请号	GB19750006171	申请日期	1975.02.13
申请人	KOPLIN H	发明人
分类号	E21B43/11;(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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