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发明名称
Avarrusohjuri
摘要
申请公布号
FI970152(U0)
申请公布日期
1997.03.21
申请号
FI19970000152U
申请日期
1997.03.21
申请人
LUUKKANEN, AULIS
发明人
LUUKKANEN, AULIS
分类号
E21B7/20;(IPC1-7):E21B7/20
主分类号
E21B7/20
代理机构
代理人
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地址
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