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发明名称
Düsenanordnung für Fräsbohrmeissel
摘要
申请公布号
DE69415719(D1)
申请公布日期
1999.02.18
申请号
DE19946015719
申请日期
1994.04.25
申请人
CAMCO DRILLING GROUP LTD., STONEHOUSE, GLOUCESTERSHIRE, GB
发明人
MURDOCK, ANDREW DAVID, BRIMSCOMBE, STROUD, GLOUCESTERSHIRE, GB
分类号
E21B10/56;E21B10/567;E21B10/60;(IPC1-7):E21B10/60
主分类号
E21B10/56
代理机构
代理人
主权项
地址
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