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发明名称
Hydraulic backup tong
摘要
申请公布号
GB2322821(A)
申请公布日期
1998.09.09
申请号
GB19980009661
申请日期
1996.10.22
申请人
* ECKEL MANUFACTURING COMPANY, INC.
发明人
RANDOLPH L * STUART
分类号
B25B13/50;E21B19/16;(IPC1-7):B25B13/50
主分类号
B25B13/50
代理机构
代理人
主权项
地址
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