4. Hydraulic and earth engineering
  5. Drainage or irrigation
  6. Porous or apertured pipe, flume, or tileway

David W. Presby

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Apparatus and method for producing pipe and pipe produced thereb

Metal working – Plural diverse manufacturing apparatus including means for... – Binding or covering and cutting
Patent

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End cap for a corrugated conduit

Pipes and tubular conduits – With closures and plugs
Reexamination Certificate

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Gun muzzle loader

Firearms – Implements
Patent

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Means for coupling conduit

Pipe joints or couplings – Clamp
Reexamination Certificate

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Means for precipitating out suspended solids in septic tank liqu

Liquid purification or separation – Processes – Separating
Patent

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Profile ID: LFUS-PAI-P-164850

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