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Filament reinforced plastic screen and apparatus for making same

Wells – Screens – Spiral
Patent

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Filter for subterranean use

Wells – Screens – Porous material
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Filter for subterranean use

Wells – Screens – Stacked annular sections
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Filtering device, especially for use as a well screen filter

Wells – Screens – Porous material
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Filtering media for controlling the flow of sand during oil well

Wells – Screens – Porous material
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Flow controlling safety valve

Wells – Screens – Porous material
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Flow nozzle assembly

Wells – Screens
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Fluid flow control device and method for use of same

Wells – Screens – Concentric pipes
Reexamination Certificate

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Foraminous screening device and method for making same

Wells – Screens – Strip or rod
Patent

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