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经营范围
发明名称
FOERFARANDE OCH ANORDNING FOER BORRNING AV OLJEKAELLA OCH FOER KOMPLETTERANDE AOTGAERDER I DJUPT VATTEN.
摘要
申请公布号
FI880146(A)
申请公布日期
1988.07.14
申请号
FI19880000146
申请日期
1988.01.13
申请人
PETROLEO BRASILEIRO S.A. - PETROBRAS
发明人
SANCHES RODRIGUES, RENATO;HIROTUGU OGURA, JAYME
分类号
E21B17/10;E21B33/035;E21B33/037;(IPC1-7):E21B/
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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