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发明名称
Menetelmä pyöritettävällä maaporalla poraamiseksi
摘要
申请公布号
FI20060390(A0)
申请公布日期
2006.04.24
申请号
FI20060000390
申请日期
2006.04.24
申请人
RAUNISTO,YRJOE
发明人
RAUNISTO,YRJOE
分类号
E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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