IP Library › Granted Patent US 3,970,158
Granted Patent Utility
US 3,970,158 · App. 05/572,545

Tooth loading for earth boring bits

Inventors: Bill Adby Black, Johannes Gerardus Leon Eenink
Patented Case View Patent ↗
Granted: Jul 20, 1976 Filed: Apr 28, 1975
Inventors
Bill Adby Black
Johannes Gerardus Leon Eenink
Assignee (at issue)
Hughes Tool Company LLC

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Quick Facts
Patent No.
US 3,970,158
App. No.
05/572,545
Filed
1975-04-28
Granted
1976-07-20
Kind
A