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Backfill paste production facility and method and apparatus for

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

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Backfilling in mines

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

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Backfilling underground voids

Hydraulic and earth engineering – Earth treatment or control – Chemical
Reexamination Certificate

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Barrier plug for a bore

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

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Barrier plug for dynamic rock stabilizing fixture

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

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Barrier wall installation system

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

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Bendable roof bolt without notch

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

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Binder for mine tailings, alluvial sand and the like

Hydraulic and earth engineering – Earth treatment or control – Chemical
Reexamination Certificate

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Binder-injecting rockbolt

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

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Blocking agent for rock cracks and method of blocking rock crack

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

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Boring-injection device, method for improving ground by means of

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

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