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

James Seddon

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Mine roof supports

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

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Self-advancing mine roof supports

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Profile ID: LFUS-PAI-P-230870

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