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

Robert R. Kelly

E - Fixed Constructions – 21 – B

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Automated drill pipe handling system

E - Fixed Constructions – 21 – B
Patent

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Automated drill pipe handling system

E - Fixed Constructions – 21 – B
Patent

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Automatic racker board finger system

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Patent

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Device to automatically add a controlled amount of corrosion...

F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent

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Electro-hydraulic interface for a power tongs

B - Operations – Transporting – 25 – B
Patent

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Profile ID: LFCA-PAI-P-77046

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