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发明名称
ELEMENTO TAGLIENTE CON AREA DI CONTATTO SUPERABRASIVA CONTROLLATA,PUNTE DA PERFORAZIONE DOTATE DI TALE ELEMENTO E PROCEDIMENTO DI
摘要
申请公布号
IT1304650(B1)
申请公布日期
2001.03.28
申请号
IT1998TO00801
申请日期
1998.09.22
申请人
BAKER HUGHES INCORPORATED
发明人
SCOTT DANNY E.;SMITH REDD H.;HORTON RALPH M.;CHAVES ARTHUR A.
分类号
E21B10/56;E21B10/573
主分类号
E21B10/56
代理机构
代理人
主权项
地址
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