4. Hydraulic and earth engineering
  5. Drainage or irrigation
  6. Control means responsive to sensed condition

Donald E. Adkins

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Preset microscopic flow valve apparatus and method

Fluid handling – Processes – With control of flow by a condition or characteristic of a...
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Surface, subsurface, continuous feed moisture maintenance system

Hydraulic and earth engineering – Drainage or irrigation – Control means responsive to sensed condition
Patent

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Profile ID: LFUS-PAI-P-717814

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