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

Christopher J. Karpathy

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Hybrid energy absorbing reusable terminal

Road structure – process – or apparatus – Traffic steering device or barrier
Reexamination Certificate

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Hybrid energy absorbing reusable terminal

Road structure – process – or apparatus – Traffic steering device or barrier
Reexamination Certificate

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Hybrid energy absorbing reusable terminal

Fences – Highway guard
Reexamination Certificate

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W-beam deck drain

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

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Profile ID: LFUS-PAI-P-2506549

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