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

Norman Kirby

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Conductor polymer backfill composition and method of use as...

Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate

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Conductor polymer backfill composition and method of use as...

Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate

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Grounding of electrical structures

Electricity: electrical systems and devices – Safety and protection of systems and devices – Feeder protection in distribution networks
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2845063

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