4. Wells
  5. Processes
  6. With indicating, testing, measuring or locating

Frederick M. Gragg

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Method of in situ oil shale retort ignition with oxygen control

Wells – Processes – With indicating – testing – measuring or locating
Patent

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Oil shale retorting process utilizing indirect heat transfer

Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent

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Profile ID: LFUS-PAI-P-1036968

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