4. Hydraulic and earth engineering
  5. Subterranean or submarine pipe or cable laying, retrieving,...
  6. Repair, replacement, or improvement

Sergei Konstantinovich Tupitsin

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Air-operated drilling machine or rotary-percussive action

Boring or penetrating the earth – With below-ground tool drive prime mover – With means to anchor prime movers support to bore wall
Patent

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Apparatus for impact action

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

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Profile ID: LFUS-PAI-P-1142046

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