Well bore data transmission system,申请号US19870001286-传众专利搜索

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发明名称	Well bore data transmission system
摘要
申请公布号	US4788544(A)	申请公布日期	1988.11.29
申请号	US19870001286	申请日期	1987.01.08
申请人	HUGHES TOOL COMPANY - USA	发明人	HOWARD, MIG A.
分类号	E21B47/01;E21B47/12;(IPC1-7):G01V1/00	主分类号	E21B47/01
代理机构		代理人
主权项
地址

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