4. Hydraulic and earth engineering
  5. Earth treatment or control
  6. Shoring, bracing, or cave-in prevention

Harvey D. Gillespie

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Anchored cable sling system

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent

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Anchored cable sling system

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

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Cable insertion tool

Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent

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Mine roof bolt

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

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Mine roof bolt

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

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Profile ID: LFUS-PAI-P-920532

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