Cutting elements for drill bits

Details Cutting elements for drill bits Cutting elements for drill bits

1977-09-15

1978-05-02

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175371, 175410, B23P 326, E21B 936, E21C 1301, E21C 1302

Patent

active

T09700021

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