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Lignosulfonate gels for sweep improvement in flooding...

E - Fixed Constructions – 21 – B
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Lignosulfonate-acrylic acid graft copolymers as sacrificial...

E - Fixed Constructions – 21 – B
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Lignosulfonates as sacrificial agents in oil recovery processes

E - Fixed Constructions – 21 – B
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Lignosulfonates for high-temperature plugging

E - Fixed Constructions – 21 – B
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Lignosulfonates for high-temperatures plugging

E - Fixed Constructions – 21 – B
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Limit clamp for use with casing attachments

E - Fixed Constructions – 21 – B
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Limited angle piggable swivel

E - Fixed Constructions – 21 – B
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Limited entry, multiple fracturing from deviated wellbores

E - Fixed Constructions – 21 – B
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Line diverting tool

E - Fixed Constructions – 21 – B
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Line moving apparatus for wireline supported tools

E - Fixed Constructions – 21 – B
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Line protectors

E - Fixed Constructions – 21 – B
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Linear coiled tubing injector

E - Fixed Constructions – 21 – B
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Linear coiled tubing injector

E - Fixed Constructions – 21 – B
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Linear cutting rotary head continuous mining machine

E - Fixed Constructions – 21 – C
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Linear displacement measurement method and apparatus

E - Fixed Constructions – 21 – B
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Linear displacement measurement method and apparatus

E - Fixed Constructions – 21 – B
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Linear feed control for a rotary tool

E - Fixed Constructions – 21 – B
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Linear indexing apparatus and methods of using same

E - Fixed Constructions – 21 – B
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Linear indexing apparatus with selective porting

E - Fixed Constructions – 21 – B
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Linear motor to control hydraulic force

E - Fixed Constructions – 21 – B
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