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发明名称
SKIVEKUTTERE FOR BERGBRYTEMASKINER.
摘要
申请公布号
NO870357(A)
申请公布日期
1987.07.29
申请号
NO19870000357
申请日期
1987.01.28
申请人
BOART INTERNATIONAL LTD
发明人
LAMBSON, ROGER STEPHEN;POPE, NOEL CUTHBERT;GRIFFITHS, VAUGHAN
分类号
E21B10/12;E21D9/10;(IPC1-7):E21B/
主分类号
E21B10/12
代理机构
代理人
主权项
地址
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