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发明名称
PROTECTOR FOR DRILL PIPES
摘要
申请公布号
UA62113(A)
申请公布日期
2003.12.15
申请号
UA20020119158
申请日期
2002.11.18
申请人
BRANCH COMPANY "UKRGAZOVYDOBYVANNIA" UKRAINIAN SCIENTIFIC-RESEARCH INSTITUTE OF NATURAL GAS (AFFILIATE)
发明人
SHLAKHTER ILLIA SEMENOVYCH;MATSLACK MYKHAILO MYKOLAIOVYCH;ROZNOVETS VOLODYMYR STEPANOVYCH;ROZENFELD ILLIA MYKHAILOVYCH
分类号
E21B17/10;(IPC1-7):E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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