4. Boring or penetrating the earth
  5. Bit or bit element
  6. Impact or percussion type

Peter Sternberger

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Cup-shaped rock drill head

Boring or penetrating the earth – Bit or bit element – Impact or percussion type
Reexamination Certificate

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Hand-held power tool with a pneumatic percussion mechanism

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

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Profile ID: LFUS-PAI-P-2963697

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