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

Barry Clifton Williams

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Assembly and method of forming a trench of a predetermined...

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Reexamination Certificate

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Drainage channel

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
Reexamination Certificate

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Mounting bracket assembly for connecting frame members of a...

Static molds – Miscellaneous mold adjuncts – In situ construction engineering or building type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2651728

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