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

Robert W. Hisey

E - Fixed Constructions – 21 – B

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Apparatus for handling a drilling equipment

E - Fixed Constructions – 21 – B
Patent

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Multi function drill drive system

E - Fixed Constructions – 21 – B
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Pulldown mechanism for rotary drill apparatus

E - Fixed Constructions – 21 – B
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Rotary table drive and joint breakout mechanism for drill rig

F - Mech Eng,Light,Heat,Weapons – 16 – D
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Rotary table drive and joint breakout mechanism for drill rig

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Apparatus for handling a drilling equipment

E - Fixed Constructions – 21 – B
Patent

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Profile ID: LFCA-PAI-P-380848

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