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Excavator and a method of forming a modified ground in an earthe

Hydraulic and earth engineering – Foundation – Columnar structure
Patent

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Excavator and a method of forming a modified ground in an earthe

Hydraulic and earth engineering – Foundation – Columnar structure
Patent

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Excavator for constructing underground continuous wall and under

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Existing pipeline renewing method and apparatus therefor

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With forming or cutting of pipe or cable
Patent

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Existing pipeline renewing method and apparatus therefor

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

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Expandable rock bolt and rock bolting system

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

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Expanded polystyrene lightweight fill

Hydraulic and earth engineering – Earth treatment or control
Patent

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Expanding base deep foundation system

Hydraulic and earth engineering – Foundation – Columnar structure
Patent

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Expanding dowel with setting-force indicator

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

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Expansion anchor

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

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Expansion assembly

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

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Expansion assembly for mine roof bolts

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

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Expansion assembly for mine roof bolts

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Expansion assembly for mine roof bolts

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Expansion assembly for mine roof bolts utilized in small diamete

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Expansion assembly for mine roof bolts utilized in small diamete

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Expansion beam for shoring up sand guards

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

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Expansion body

Hydraulic and earth engineering – Foundation – Columnar structure
Patent

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Expansion body

Hydraulic and earth engineering – Foundation – Columnar structure
Patent

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Expansion bolt and mine roof reinforcement

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

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