IP Library › Granted Patent US 4,784,548
Granted Patent Utility
US 4,784,548 · App. 06/918,041

Double-stacked freight car

Inventors: Ronald S. Butcher, Mohamed A. Khattab
Patented Case View Patent ↗
Granted: Nov 15, 1988 Filed: Oct 14, 1986
Inventors
Ronald S. Butcher
Mohamed A. Khattab
Assignee (at issue)
National Steel Car Limited

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Quick Facts
Patent No.
US 4,784,548
App. No.
06/918,041
Filed
1986-10-14
Granted
1988-11-15
Kind
A