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

Alan D. Sowry

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Foundation and soil irrigation system utilizing wicking...

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

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Foundation and soil irrigation system utilizing wicking...

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

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Method and apparatus for enabling hand tools to float

Buoys – rafts – and aquatic devices – Buoy
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2597841

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