4. Mining or in situ disintegration of hard material
  5. Processes
  6. Stabilizing underground structure

David A. Whitley

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Blind shaft drilling

Wells – With below and above ground modification – With receptacle for insertion into well
Patent

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Bore hole mining

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

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Copy systems comprising microencapsulated colorants

Plastic and nonmetallic article shaping or treating: processes – Encapsulating normally liquid material – Liquid encapsulation utilizing an emulsion or dispersion to...
Patent

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Mine shaft liner

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Vertical
Patent

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Profile ID: LFUS-PAI-P-712644

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