4. Boring or penetrating the earth
  5. Processes

Yuriy Kosobrodov

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Cutting bit

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Plural cutting edges on tooth – pick – or bit
Reexamination Certificate

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Method of cutting and a cutting rotative bit

Boring or penetrating the earth – Processes
Patent

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Profile ID: LFUS-PAI-P-453523

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