4. Stock material or miscellaneous articles
  5. Coated or structually defined flake, particle, cell, strand,...
  6. Particulate matter

Christian Gerk

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Drill bits comprising dual-phase tungsten carbide material

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate

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Dual-phase hard material comprising tungsten carbide,...

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3211473

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