4. Tool driving or impacting
  5. Processes

Esa Rantala

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Impact device

Boring or penetrating the earth – With above-ground means to impact an earth-penetrating means
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Method and equipment for controlling operation of rock...

Tool driving or impacting – Processes
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Percussion device with a control valve for two alternately...

Motors: expansible chamber type – Relatively movable working members with one having motive... – Position of one working member controls motive fluid for...
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Rock drilling machine and axial bearing

Boring or penetrating the earth – Below-ground impact members – Fluid-operated
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Profile ID: LFUS-PAI-P-2835706

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