IP Library › Granted Patent US 4,667,756
Granted Patent Utility
US 4,667,756 · App. 06/867,343

Matrix bit with extended blades

Inventors: William W. King, Arthur M. Handsel, David Nguyen
Patented Case View Patent ↗
Granted: May 26, 1987 Filed: May 23, 1986
Inventors
William W. King
Arthur M. Handsel
David Nguyen
Assignee (at issue)
Hughes Tool Company - USA

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Quick Facts
Patent No.
US 4,667,756
App. No.
06/867,343
Filed
1986-05-23
Granted
1987-05-26
Kind
A