| 1965 NAT CASTINGS CO Railway Car Conduit Connectors |
| 1957 GEN STEEL CASTINGS CORP Railway Car Body Structure |
| 1932 GEN STEEL CASTINGS CORP Railway Car Patent |
| 1936 GEN STEEL CASTINGS CORP Railway Hopper Car |
| 1950 BUCKEYE STEEL CASTINGS CO Railway Car Coupler |
| 1932 GEN STEEL CASTINGS CORP Railway Car Truck |
| 1940 GEN STEEL CASTINGS CORP Railway Container Car |
| 1932 GEN STEEL CASTINGS CORP Railway Car Structure |
| 1933 GEN STEEL CASTINGS CORP Railway Car Patent |
| 1937 GEN STEEL CASTINGS CORP Railway Car Patent |
| 1948 BUCKEYE STEEL CASTINGS CO Railway Car Truck |
| 1931 GEN STEEL CASTINGS CORP Railway Car Structure |
| 1938 GEN STEEL CASTINGS CORP Railway Car Underfame |
| 1932 GEN STEEL CASTINGS CORP Railway Car Underframe |
| 1936 BUCKEYE STEEL CASTINGS CO Railway Car Truck |
| 1936 GEN STEEL CASTINGS CORP Railway Car Structure |
| 1943 BUCKEYE STEEL CASTINGS CO Railway Car Truck |
| 1943 NAT MALLEABLE STEEL CASTINGS Railway Car Truck |
| 1961 NAT CASTINGS CO Railway Car Underframe Arrangement |
| 1935 GEN STEEL CASTINGS CORP Railway Car Patent |
| 1959 GEN STEEL CASTINGS CORP Railway Car Truck |
| 1964 NAT CASTINGS CO Cushioned Underframe Railway Car |