4. Mining or in situ disintegration of hard material
  5. Miscellaneous

Axel Neukirchen

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Cutter bit with optimized shank

Mining or in situ disintegration of hard material – Miscellaneous
Patent

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Helical drill

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
Patent

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Percussive blow assisted rotary drill

Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges
Patent

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Rock drill

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion
Patent

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Rotary percussion blow assisted drill

Boring or penetrating the earth – Below-ground impact members
Patent

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Profile ID: LFUS-PAI-P-261880

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