IP Library › Granted Patent US 4,802,420
Granted Patent Utility
US 4,802,420 · App. 07/076,176

Centre beam railroad car

Inventors: Ronald S. Butcher, Mohamed A. Khattab
Patented Case View Patent ↗
Granted: Feb 7, 1989 Filed: Jul 21, 1987
Inventors
Ronald S. Butcher
Mohamed A. Khattab
Assignee (at issue)
National Steel Car Limited

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Quick Facts
Patent No.
US 4,802,420
App. No.
07/076,176
Filed
1987-07-21
Granted
1989-02-07
Kind
A