4. Hydraulic and earth engineering
  5. Foundation
  6. Columnar structure

Frits-Jan Koppert

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Apparatus and method for joining pipe ends together

Metal fusion bonding – With means to handle work or product
Reexamination Certificate

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Jet excavating device

Excavating – Ditcher – Condition responsive
Reexamination Certificate

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Method for making a channel in the ground, excavating device...

Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate

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Method for making a channel in the ground, excavating device...

Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2376230

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