E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: United States Of America
Abrasive wear-resistant hardfacing materials, drill bits and...
Bit leg and cone hardfacing for earth-boring bit
Composite materials including nickel-based matrix materials...
Earth-boring rotary drill bits including bit bodies having...
Earth-boring rotary drill bits including bit bodies...
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