4. Boring or penetrating the earth
  5. Boring without earth removal
  6. Combined with earth removal

Philip B. Hildebrand

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Chemical control system for confining volatile liquids

Hazardous or toxic waste destruction or containment – Containment
Patent

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Method and apparatus for subsurface bioremediation

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

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Sampling apparatus and method

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Profile ID: LFUS-PAI-P-1415444

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