4. Earth boring, well treating, and oil field chemistry
  5. Earth boring
  6. Contains organic component

Brent Warren

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Drilling fluid

Mineral oils: processes and products – Tar sand treatment with liquid
Reexamination Certificate

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Quaternary nitrogen containing amphoteric water soluble...

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2046608

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