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Sucker rod coupling extractor

E - Fixed Constructions – 21 – B
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Sucker rod cradle apparatus

E - Fixed Constructions – 21 – B
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Sucker rod cradle apparatus

E - Fixed Constructions – 21 – B
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Sucker rod guide bearing

E - Fixed Constructions – 21 – B
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Sucker rod guide installer

E - Fixed Constructions – 21 – B
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Suction jet drilling tool

E - Fixed Constructions – 21 – B
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Suface mining method

E - Fixed Constructions – 21 – C
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Sulfonate blends useful for improved oil recovery

E - Fixed Constructions – 21 – B
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Sulfonate dimer surfactant additives for gas foam drives and...

E - Fixed Constructions – 21 – B
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Sulfonate dimer surfactant additives for steam foam drives...

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Sulfonate dimer surfactant cyclic steam stimulation process...

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Sulfonation of crude oils to produce petroleum sulfonates

E - Fixed Constructions – 21 – B
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Sulfonation of crude oils with gaseous so.sub.3 to produce...

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Sulfur barrier for use with in situ processes for treating...

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Sulfur coating compositions

E - Fixed Constructions – 21 – D
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Superabrasive cutting elements with enhanced durability and...

E - Fixed Constructions – 21 – B
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Superhard material enhanced inserts for earth-boring bits

E - Fixed Constructions – 21 – B
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Superhard material enhanced inserts for earth-boring bits

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Superior foam producing agent for use in oil recovery

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Supplemental referencing techniques in borehole surveying

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