IP Library › Granted Patent US 4,377,300
Granted Patent Utility
US 4,377,300 · App. 06/225,296

Ballast weights for tractors

Inventor: John L. Old
Patented Case View Patent ↗
Granted: Mar 22, 1983 Filed: Jan 15, 1981
Inventor
John L. Old
Assignee (at issue)
Massey-Ferguson Services, N.V.

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Quick Facts
Patent No.
US 4,377,300
App. No.
06/225,296
Filed
1981-01-15
Granted
1983-03-22
Kind
A