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发明名称
Drejeligt dybdebor med excenterborekrone.
摘要
申请公布号
DK104046(C)
申请公布日期
1966.03.28
申请号
DK19630000960
申请日期
1963.03.01
申请人
AB SKAANSKA CEMENTGJUTERIET
发明人
分类号
E21B7/20;E21B10/66;E21B17/10;(IPC1-7):E21B9/26
主分类号
E21B7/20
代理机构
代理人
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