4. Joints and connections
  5. Interfitted members
  6. Lugged member, rotary engagement

Anders E. Persson

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Boring head

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Means for connecting a male part with a female part

Joints and connections – Interfitted members – Lugged member – rotary engagement
Patent

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Method and device in earth cutting

Boring or penetrating the earth – Processes
Patent

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Reamer bit for raise boring

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Wedgingly mounted tool holder or adapter for a cutting head

Mining or in situ disintegration of hard material – Miscellaneous
Patent

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Profile ID: LFUS-PAI-P-689476

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