4. Liquid purification or separation
  5. Structural installation
  6. Geographic

Humberto Urriola

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Drainage cell

Liquid purification or separation – Structural installation – Geographic
Patent

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Drainage structures

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

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Modular drainage channels

Hydraulic and earth engineering – Drainage or irrigation – Having regulation of flow through channel
Reexamination Certificate

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Paver

Building units and construction elements – Architectural stock material – Construction block or brick type
Design Patent

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Paver

Building units and construction elements – Architectural stock material – Construction block or brick type
Design Patent

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Profile ID: LFUS-PAI-P-841681

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