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发明名称
DIAMANTBORRVERKTYG FOER SLAG- OCH ROTATIONSBORRNING AV BERG.
摘要
申请公布号
FI911913(A0)
申请公布日期
1991.04.19
申请号
FI19910001913
申请日期
1991.04.19
申请人
SANDVIK AB
发明人
WALDENSTROEM, MATS;FISCHER, UDO;HILLERT, LARS;DENNIS, MAHLON
分类号
E21B10/52;E21B10/56;E21B10/567;(IPC1-7):E21B/
主分类号
E21B10/52
代理机构
代理人
主权项
地址
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