4. E - Fixed Constructions
  5. 21
  6. B

Roger Stave

E - Fixed Constructions – 21 – B

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Country: Norway

A method and device for controlling drilling fluid pressure

E - Fixed Constructions – 21 – B
Patent

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Device for removal and filtration of drilling fluid

E - Fixed Constructions – 21 – B
Patent

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Method and system for return of drilling fluid

E - Fixed Constructions – 21 – B
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Pipe string device for conveying a fluid from a well head to...

F - Mech Eng,Light,Heat,Weapons – 17 – D
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Profile ID: LFCA-PAI-P-1871299

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