4. Tool driving or impacting
  5. Impacting devices
  6. With means for rotating tool

Esa Karru

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Hydraulic drilling apparatus

Tool driving or impacting – Impacting devices – With means for rotating tool
Patent

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Hydraulic percussion apparatus

Motors: expansible chamber type – Cyclically operable – Distributor forms traversed movable portion of working...
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Profile ID: LFUS-PAI-P-1117997

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