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发明名称
ROCK DRILL FEEDING TEAM CONTROL
摘要
申请公布号
GB2202472(A)
申请公布日期
1988.09.28
申请号
GB19880005424
申请日期
1988.03.08
申请人
OY * TAMPELLA AB
发明人
JUHA * PIIPPONEN;OSSI * TIENARI
分类号
E21B19/24;E21B44/00;(IPC1-7):E21C5/00
主分类号
E21B19/24
代理机构
代理人
主权项
地址
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