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发明名称
STENBOREVAERKTOEJ ISAER TIL BOREHAMRE
摘要
申请公布号
DK514777(A)
申请公布日期
1978.06.25
申请号
DK19770005147
申请日期
1977.11.21
申请人
WERKZEUGBAU
发明人
BOEHM O
分类号
E21B10/56;E21B10/62;(IPC1-7):E21C/
主分类号
E21B10/56
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代理人
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