4. Earth boring, well treating, and oil field chemistry
  5. Well treating
  6. Contains inorganic component other than water or clay

Brett Collins

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Application of aluminum chlorohydrate in viscosifying brine...

Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Reexamination Certificate

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Electromagnetic valve actuator with soft-seating

Valves and valve actuation – Fluid actuated or retarded – Dashpot or fluid controlled retarder or timer
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2068211

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