4. Stock material or miscellaneous articles
  5. All metal or with adjacent metals
  6. Having metal particles

James Edward Boyce

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Drill bit having an improved seal and lubrication method...

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Reexamination Certificate

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Hardfacing having coated ceramic particles or coated particles o

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Hardfacing having coated ceramic particles or coated...

Electric heating – Metal heating – Weld rod composition
Reexamination Certificate

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Inserts and compacts having coated or encrusted cubic boron...

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

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Inserts and compacts having coated or encrusted diamond particle

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Profile ID: LFUS-PAI-P-392960

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