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发明名称
VENTILANORDNING FOR UNDERSJOEISK PRODUKSJONSTESTING.
摘要
申请公布号
NO880094(D0)
申请公布日期
1988.01.11
申请号
NO19880000094
申请日期
1988.01.11
申请人
BAKER OIL TOOLS INC
发明人
YATES, PETER D.
分类号
E21B34/00;E21B34/04;(IPC1-7):E21B/
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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