IP Library › Granted Patent US 4,911,504
Granted Patent Utility
US 4,911,504 · App. 07/221,820

Cutter bit and tip

Inventors: Stephen P. Stiffler, Wayne H. Beach, John J. Prizzi
Patented Case View Patent ↗
Granted: Mar 27, 1990 Filed: Jul 20, 1988
Inventors
Stephen P. Stiffler
Wayne H. Beach
John J. Prizzi
Assignee (at issue)
KENNAMETAL INC.

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Quick Facts
Patent No.
US 4,911,504
App. No.
07/221,820
Filed
1988-07-20
Granted
1990-03-27
Kind
A