4. Boring or penetrating the earth
  5. Processes
  6. Boring with specific fluid

Charles S. Mackey

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Curvature probe and method

Geometrical instruments – Gauge – Internal
Patent

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Hydraulic drilling apparatus and method

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Hydraulic drilling apparatus and method

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent

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Hydraulic drilling apparatus and method

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Hydraulic drilling method with penetration control

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent

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Profile ID: LFUS-PAI-P-255145

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