4. Cleaning and liquid contact with solids
  5. Processes
  6. Combined

Wilbur F. Roper

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Reduction of the frictional coefficient in a borehole by the use

Boring or penetrating the earth – Natural vibration characteristic of an element of boring...
Patent

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Stickometer

Measuring and testing – Borehole or drilling – Downhole test
Patent

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System for automatically flushing hydrocyclones used in drilling

Cleaning and liquid contact with solids – Processes – Combined
Patent

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Profile ID: LFUS-PAI-P-789185

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