File:Hydril Annular BOP Patent App.jpg

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Description

English: Patent Application Drawing Showing an Annular-type Blowout Preventer, by Hydril Corporation, US Patent Application n° 11/829,697, Pulication n° 2008/0023917 A1]. Legend added.

Source

US Patent Application n° 11/829,697, Pulication n° 2008/0023917 A1

Date

Filed July 27, 2007

Author

Shafiq Khandoker

Permission
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Date/TimeThumbnailDimensionsUserComment
current15:47, 24 July 2010Thumbnail for version as of 15:47, 24 July 20101,224 × 1,149 (320 KB)CatsquisherReverted to version as of 15:43, 24 July 2010

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