4. Mining or in situ disintegration of hard material
  5. Cutter tooth or tooth head
  6. Rolling or rotatable-type bit mount

Gregory J. Kaufmann

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Apparatus and method for testing internal combustion engine...

Measuring and testing – Internal combustion engine or related engine system or... – Compression
Reexamination Certificate

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Rotary cutter for tunnel boring machine

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2249962

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