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发明名称
GEWINDEABSTANDHALTER
摘要
申请公布号
AT380922(T)
申请公布日期
2007.12.15
申请号
AT20040255558T
申请日期
2004.09.14
申请人
GRANT PRIDECO LP
发明人
ALARIA, LUIGI;MARCHETTO, MAURIZIO
分类号
E21B17/042;F16L15/04;F16L15/08
主分类号
E21B17/042
代理机构
代理人
主权项
地址
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