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公开(公告)号:EP2836335A4
公开(公告)日:2016-05-25
申请号:EP13775094
申请日:2013-04-08
Applicant: SMITH INTERNATIONAL
Inventor: MIDDLEMISS STEWART N , BAO YAHUA , CARTER LAN
CPC classification number: B30B15/34 , B01J3/067 , B30B11/004
公开(公告)号:EP2836335A4
公开(公告)日:2016-05-25
申请号:EP13775094
申请日:2013-04-08
Applicant: SMITH INTERNATIONAL
Inventor: MIDDLEMISS STEWART N , BAO YAHUA , CARTER LAN
CPC classification number: B30B15/34 , B01J3/067 , B30B11/004