4. Boring or penetrating the earth
  5. Bit or bit element
  6. Plural separable cutter elements

William P. Losch

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Cutting tool assembly with replaceable spray nozzle

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Cleansing fluid passage
Reexamination Certificate

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Rotatable cutting bit assembly with wedge-lock retention assembl

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements
Patent

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Rotatable cutting bit assembly with wedge-lock retention...

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

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Profile ID: LFUS-PAI-P-1015633

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