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

Teruo Yahiro

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High-velocity jet digging method

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

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Method of and apparatus for crushing earth under the ground

Boring or penetrating the earth – With means movable relative to tool below ground to stop... – Stops flow by movement about fixed pivot
Patent

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Process for the high-pressure grouting within the earth and appa

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

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Profile ID: LFUS-PAI-P-463729

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