IP Library › Granted Patent US 5,228,522
Granted Patent Utility
US 5,228,522 · App. 07/724,043

Lift assist and cushion spring tool bar wheel for agricultural implements

Inventors: John F. Stufflebeam, Roland J. Frase
Patented Case View Patent ↗
Granted: Jul 20, 1993 Filed: Jul 1, 1991
Inventors
John F. Stufflebeam
Roland J. Frase
Assignee (at issue)
Case GmbH

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Quick Facts
Patent No.
US 5,228,522
App. No.
07/724,043
Filed
1991-07-01
Granted
1993-07-20
Kind
A