IP Library › Granted Patent US 4,909,375
Granted Patent Utility
US 4,909,375 · App. 07/203,486

Automatic tie plate sorting conveyor

Inventors: Dennis J. Cotic, John L. Thorson
Patented Case View Patent ↗
Granted: Mar 20, 1990 Filed: Jun 7, 1988
Inventors
Dennis J. Cotic
John L. Thorson
Assignee (at issue)
Oak Industries Inc.

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Quick Facts
Patent No.
US 4,909,375
App. No.
07/203,486
Filed
1988-06-07
Granted
1990-03-20
Kind
A