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发明名称
VERTICAL CONNECTING HOSE SUPPORT
摘要
申请公布号
CA1023725(A)
申请公布日期
1978.01.03
申请号
CA19750220920
申请日期
1975.02.27
申请人
DRESSER INDUSTRIES, INC.
发明人
EDDY, KENNETH H.
分类号
E21B4/00;E21B19/22
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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