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发明名称
MOMENT-NOEKKEL.
摘要
申请公布号
NO870058(D0)
申请公布日期
1987.01.07
申请号
NO19870000058
申请日期
1987.01.07
申请人
HUGHES TOOL CO
发明人
RENFRO, JAMES G.
分类号
B25B23/145;E21B19/16;(IPC1-7):E21B/
主分类号
B25B23/145
代理机构
代理人
主权项
地址
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