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经营范围
发明名称
Underrömmer
摘要
申请公布号
NO310311(B1)
申请公布日期
2001.06.18
申请号
NO19990003137
申请日期
1999.06.24
申请人
BJOERNSTAD, THOR
发明人
BJOERNSTAD, THOR
分类号
E21B7/28;E21B10/32;(IPC1-7):E21B10/32
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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