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发明名称
Foerfarande, borrningsanordning och bruk foer borrning
摘要
申请公布号
FI955780(A0)
申请公布日期
1995.12.01
申请号
FI19950005780
申请日期
1995.12.01
申请人
JAERVELAE, JORMA;JAERVELAE, VESA
发明人
JAERVELAE, JORMA;JAERVELAE, VESA
分类号
E21B;(IPC1-7):E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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