4. Hydraulic and earth engineering
  5. Fluid control, treatment, or containment
  6. Flow control

Louis Dubreuil

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Continuous, undisturbed sampling by rotational boring in non-pla

Boring or penetrating the earth – Processes – Sampling of earth formations
Patent

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Method for installing an expansion joint in a concrete dam

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent

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Sealing device for expansion joints of concrete dams and method

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent

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Traction boring device using multiple trepans for producing larg

Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent

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Profile ID: LFUS-PAI-P-19248

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