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发明名称
WELL TUBING THROUGH-WALL COMMUNICATING TOOL
摘要
申请公布号
GB8805366(D0)
申请公布日期
1988.04.07
申请号
GB19880005366
申请日期
1988.03.07
申请人
PHOENIX PETROLEUM SERVICES LTD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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