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发明名称
VORRICHTUNG ZUM VERSCHLIESSEN EINES KERNBOHRGERAETES IN EINEM BOHRSTRANG.
摘要
申请公布号
DE3865064(D1)
申请公布日期
1991.10.31
申请号
DE19883865064
申请日期
1988.04.13
申请人
DIAMANT BOART S.A., BRUESSEL/BRUXELLES, BE
发明人
HALLEZ, CHARLES PIERRE, B-6394 TELLIN, BE
分类号
E21B21/10;E21B25/00;(IPC1-7):E21B25/00
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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