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Reduced shock landing collar

E - Fixed Constructions – 21 – B
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Reduced volume cutting tip and cutter bit assembly...

E - Fixed Constructions – 21 – C
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Reduced waiting time hydraulic drilling jar

E - Fixed Constructions – 21 – B
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Reduced weight power tong for turning pipe

E - Fixed Constructions – 21 – B
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Reduced-length measure while drilling apparatus using...

E - Fixed Constructions – 21 – B
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Reducing aluminum compound precipitation following...

E - Fixed Constructions – 21 – B
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Reducing co2 emissions from oilfield diesel engines

E - Fixed Constructions – 21 – B
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Reducing error contributions to gyroscopic measurements from...

E - Fixed Constructions – 21 – B
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Reducing permeability of highly permeable zones in oil and...

E - Fixed Constructions – 21 – B
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Reducing permeability of highly permeable zones in...

E - Fixed Constructions – 21 – B
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Reducing sludging during oil well acidizing

E - Fixed Constructions – 21 – B
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Reducing viscosity of oil for production from a hydrocarbon...

E - Fixed Constructions – 21 – B
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Reducing volatile phosphorous in hydrocarbon based...

E - Fixed Constructions – 21 – B
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Reduction of carbon monoxide in substoichiometric combustion

E - Fixed Constructions – 21 – B
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Reduction of fluid loss from operating chambers in steam...

E - Fixed Constructions – 21 – B
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Reduction of the frictional coefficient in a borehole by the...

E - Fixed Constructions – 21 – B
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Reduction of viscosity of aqueous fluids

E - Fixed Constructions – 21 – B
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Redundant detonation initiators for use in wells and method...

E - Fixed Constructions – 21 – B
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Reel spool and stand assembly for coiled tubing injector system

E - Fixed Constructions – 21 – B
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Reel spool and stand assembly for coiled tubing injector system

E - Fixed Constructions – 21 – B
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