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发明名称
ANORDNING VED BORHODE PAA EN TUNNELLBOREMASKIN
摘要
申请公布号
NO921357(D0)
申请公布日期
1992.04.07
申请号
NO19920001357
申请日期
1992.04.07
申请人
NARVESTAD AS, STEIN
发明人
NARVESTAD, STEIN
分类号
E21B10/12;E21D9/10;(IPC1-7):E21B/
主分类号
E21B10/12
代理机构
代理人
主权项
地址
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