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发明名称
BOHRVORRICHTUNG
摘要
申请公布号
ATA54186(A)
申请公布日期
1989.09.15
申请号
AT19860000541
申请日期
1986.03.03
申请人
ING. GUENTER KLEMM SPEZIALUNTERNEHMEN FUER BOHRTECHNIK
发明人
分类号
E21B7/20;E21B10/38;E21B10/40;E21B10/56;E21B10/62;E21B21/00;(IPC1-7):E21B7/20
主分类号
E21B7/20
代理机构
代理人
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地址
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