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

John S. Horvath

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Combined pen and lighter

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Plural or combined
Patent

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Elasticized geosynthetic panel and geofoam composition

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
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Geoinclusion method and composite

Hydraulic and earth engineering – Drainage or irrigation – Porous waterway – e.g. – sand drain – etc.
Patent

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Profile ID: LFUS-PAI-P-878206

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