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发明名称
Rörhenger-sett for en offshore-oljebrönn kjöreverktöy for dets plassering og håndteringmetode
摘要
申请公布号
NO941441(A)
申请公布日期
1994.10.21
申请号
NO19940001441
申请日期
1994.04.20
申请人
PETROLEO BRASILEIRO SA - PETROBRAS
发明人
SOUZA, WALBER PEREIRA DE;MOREIRA, JOSE ROBERTO FERREIRA
分类号
E21B33/043;(IPC1-7):E21B33/043
主分类号
E21B33/043
代理机构
代理人
主权项
地址
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