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发明名称
Bohrarm-Baugruppe
摘要
申请公布号
DE3504761(C2)
申请公布日期
1993.10.07
申请号
DE19853504761
申请日期
1985.02.13
申请人
THE STEEL ENGINEERING CO. LTD., SANDTON, ZA
发明人
HEDGES, RAYMOND, WORKSOP, NOTTINGHAMSHIRE, GB;JAMES, BRIAN HARRY, REDFORD, NOTTINGHAMSHIRE, GB;FOSTER, BRUCE ALLEN GEORGE EDWARD, REDFORD, NOTTINGHAMSHIRE, GB
分类号
E21B15/04;(IPC1-7):E21C11/00
主分类号
E21B15/04
代理机构
代理人
主权项
地址
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