4. Wells
  5. With eduction pump or plunger
  6. Having sediment trap or deflector

Donald B. Caldwell

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Apparatus and methods for pumping solids and undesirable liquids

Wells – Processes – Cleaning or unloading well
Patent

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Apparatus and methods for pumping solids and undesirable liquids

Wells – With eduction pump or plunger – Having sediment trap or deflector
Patent

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Damping unit for globular storage tank

Brakes – With condition indicator – Electrical
Patent

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High-temperature damping composite

Stock material or miscellaneous articles – Composite – Of polyisocyanurate
Patent

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Method and apparatus for removal of downhole well debris

Wells – Processes – Cleaning or unloading well
Patent

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Profile ID: LFUS-PAI-P-47157

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