IP Library › Granted Patent US 4,830,291
Granted Patent Utility
US 4,830,291 · App. 07/177,528

Waste material reversible hammer mill

Inventor: Robert M. Williams
Patented Case View Patent ↗
Granted: May 16, 1989 Filed: Apr 4, 1988
Inventor
Robert M. Williams

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Quick Facts
Patent No.
US 4,830,291
App. No.
07/177,528
Filed
1988-04-04
Granted
1989-05-16
Kind
A