4. Hydraulic and earth engineering
  5. Underground passageway, e.g., tunnel
  6. Lining

Michael D. Zeiber

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Inflatable underground structure liner

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining
Reexamination Certificate

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Inflatable underground structure liner

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Reexamination Certificate

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Junction seal between a liner of an underground structure...

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2595376

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