APPARATUS FOR MEASURING BOTTOM HOLE PRESSURE,申请号GB19800040474-传众专利搜索

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发明名称	APPARATUS FOR MEASURING BOTTOM HOLE PRESSURE
摘要
申请公布号	GB2089865(A)	申请公布日期	1982.06.30
申请号	GB19800040474	申请日期	1980.12.18
申请人	CAMCO INC	发明人
分类号	E21B33/129;E21B34/14;E21B47/06;(IPC1-7):E21B47/06	主分类号	E21B33/129
代理机构		代理人
主权项
地址

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