4. Mining or in situ disintegration of hard material
  5. Processes
  6. Breaking down by direct contact with fluid

Randall D. Peterson

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Softwall mining method and device

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
Reexamination Certificate

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Softwall mining method and device

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent

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Surface-assisted continuous underground mine conveyor

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means
Patent

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Wall-to-wall surface mining process

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
Patent

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Profile ID: LFUS-PAI-P-764467

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