IP Library › Granted Patent US 4,865,392
Granted Patent Utility
US 4,865,392 · App. 07/074,210

Rotatable cutting bit

Inventors: Joe Penkunas, Neil Portnoff
Patented Case View Patent ↗
Granted: Sep 12, 1989 Filed: Jul 16, 1987
Inventors
Joe Penkunas
Neil Portnoff
Assignee (at issue)
GTE Products Corporation

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Quick Facts
Patent No.
US 4,865,392
App. No.
07/074,210
Filed
1987-07-16
Granted
1989-09-12
Kind
A