4. Chemistry: electrical and wave energy
  5. Processes and products
  6. Electrostatic field or electrical discharge

MacDonald Hawley

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Hydraulic device for forming a cavity in a borehole

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With tool shaft having plural passages for drilling fluid
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Ion generator and method of generating ions

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
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Profile ID: LFUS-PAI-P-1773423

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