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发明名称
TETNINGSSYSTEM.
摘要
申请公布号
NO881085(A)
申请公布日期
1988.09.12
申请号
NO19880001085
申请日期
1988.03.11
申请人
ARROW OIL TOOLS INC
发明人
WYATT, MARK L.
分类号
E21B33/00;E21B33/12;F16J15/18;(IPC1-7):F16J15/10
主分类号
E21B33/00
代理机构
代理人
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地址
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