Economy & Finance national oilwell varco 2003 Form 10-K

1. FORM 10-KSECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549(Mark one)[ ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR…

Documents 7RIG Components

RIG Components RIG Components Annular Blowout Preventer A large valve, usually installed above the ram preventers,that forms a seal in the annular space between the pipe…