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发明名称
DRILLING APPARATUS WITH COORDINATE SYSTEM OF DRILLING ARM CONTROL
摘要
申请公布号
CS8902877(A3)
申请公布日期
1992.09.16
申请号
CS19890002877
申请日期
1989.05.12
申请人
KOLLAR IVAN ING.
发明人
KOLLAR IVAN ING.
分类号
(IPC1-7):E21C5/11;E21C11/00
主分类号
(IPC1-7):E21C5/11
代理机构
代理人
主权项
地址
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