RB

Ronald S. Butcher

NL National Steel Car Limited: 1 patents #1 of 2Top 50%
Overall (1989): #64,279 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4802420 Centre beam railroad car Mohamed A. Khattab 1989-02-07