LandOfFree - US Patents - Listing for Metal tools and implements, making,Blank or process,Drill

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

Paper drill bit

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

Patterned hardfacing shapes on insert cutter cones

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

Percussive rock drill bit and buttons therefor and method...

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

Polycrystal diamond fluted tool and a process for the production

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

Polycrystalline diamond partially depleted of catalyzing...

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

Pre-formed wear pads for drill stabilizers

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

Predominantly diamond cutting structures for earth boring

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

Preformed elements for a rotary drill bit

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

Process for producing a rotary drilling bit

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

Process for the fabrication of a multi-blade tool

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

Process for the manufacture of a drill head provided with hard,

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

Process of drill bit manufacture