IP Library › Granted Patent US 4,940,288
Granted Patent Utility
US 4,940,288 · App. 07/303,510

Earth engaging cutter bit

Inventors: Stephen P. Stiffler, Wayne H. Beach
Patented Case View Patent ↗
Granted: Jul 10, 1990 Filed: Jan 27, 1989
Inventors
Stephen P. Stiffler
Wayne H. Beach
Assignee (at issue)
KENNAMETAL INC.

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Quick Facts
Patent No.
US 4,940,288
App. No.
07/303,510
Filed
1989-01-27
Granted
1990-07-10
Kind
A