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发明名称
Utløsbar lÕseanordning for innmontering i en rørstreng, særlig en borestreng
摘要
申请公布号
NO20011234(D0)
申请公布日期
2001.03.12
申请号
NO20010001234
申请日期
2001.03.12
申请人
ERLAND, ODD IDAR
发明人
ERLAND, ODD IDAR
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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