4. Pumps
  5. Motor driven

Lufkin Industries, Inc.

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Apparatus for analysis and control of a reciprocating pump...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate

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Herringbone gear teeth and method for manufacturing same

Metal working – Method of mechanical manufacture – Gear making
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Inferred production rates of a rod pumped well from surface...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
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Method and apparatus for applying dynamic loads to a locked...

Measuring and testing – Dynamometers – Responsive to torque
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Method for mitigating rod float in rod pumped wells

Pumps – Condition responsive control of pump drive motor – Single motor control element responsive to means sensing...
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Profile ID: LFUS-PAI-P-789068

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