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发明名称
VERBESSERUNGEN IN BEZUG AUF HYDRAULISCH BETÄTIGTE KOLBEN-STRANGPRESSEN
摘要
申请公布号
AT469287(T)
申请公布日期
2010.06.15
申请号
AT20050804239T
申请日期
2005.11.04
申请人
HYDRIL USA MANUFACTURING LLC
发明人
ANTHONY S. BAMFORD
分类号
E21B33/06
主分类号
E21B33/06
代理机构
代理人
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地址
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