4. Boring or penetrating the earth
  5. Processes

Yitshaq Lipsker

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Excavating equipment fitted with surface clamps

Excavating – Clamshell bucket – Contiguous pivots
Patent

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Ground anchors

Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Patent

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Method for underground excavation

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Cut and cover
Patent

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Soil drilling

Boring or penetrating the earth – Processes
Patent

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Soil drilling equipment

Boring or penetrating the earth – With below-ground tool drive prime mover – With below-ground feed means
Patent

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Profile ID: LFUS-PAI-P-1005384

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