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

William D. Vanderford

Inventor

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Method of providing lubricant volume displacement system for a r

Metal working – Method of mechanical manufacture – Assembling or joining
Patent

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Patterned hardfacing shapes on insert cutter cones

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

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Roller cone gage surface cutting elements with multiple ultra ha

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

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Thrust flange actuated rock bit lubrication system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means
Patent

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Profile ID: LFUS-PAI-P-290062

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