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发明名称
Uppoporakone
摘要
申请公布号
FI97991(B)
申请公布日期
1996.12.13
申请号
FI19920005769
申请日期
1992.12.18
申请人
UNIROC AB
发明人
EKWALL, BERNDT;JAKOBSSON, TORBJOERN;PETERSON, MARTIN
分类号
E21B4/14;(IPC1-7):E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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