4. Metal tools and implements, making
  5. Blank or process
  6. Drill

Gary R. Chunn

Inventor

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Bonding of cutters in drill bits

Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Reexamination Certificate

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Brazing receptacle for improved PCD cutter retention

Metal tools and implements – making – Blank or process – Drill
Patent

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Profile ID: LFUS-PAI-P-850774

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