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发明名称
SLIDING-SLEEVE VALVE FOR AN OIL WELL
摘要
申请公布号
GB2151673(B)
申请公布日期
1987.01.21
申请号
GB19840030256
申请日期
1984.11.30
申请人
COMPAGNIE * FRANCAISE DES PETROLES
发明人
PAUL * HELDERLE;FABRICE * ARNAUD;YANNICK * LE NOURS
分类号
E21B34/10;E21B34/14;(IPC1-7):E21B34/14
主分类号
E21B34/10
代理机构
代理人
主权项
地址
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