| 1959 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1960 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1958 AMERICAN STEEL FOUNDRIES Rotor Brake Head Guide |
| 1950 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1958 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1947 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1951 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1957 AMERICAN STEEL FOUNDRIES Rotor Brake Suspension |
| 1961 AMERICAN STEEL FOUNDRIES Rotor Brake Arrangement |
| 1943 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1949 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1957 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1950 AMERICAN STEEL FOUNDRIES Rotor Type Railway Brake |
| 1956 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1960 AMERICAN STEEL FOUNDRIES Lever System Rotor Brake |
| 1958 AMERICAN STEEL FOUNDRIES Rotor Brake Mounting |
| 1942 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1958 AMERICAN STEEL FOUNDRIES Rotor Brake Suspension |
| 1945 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |
| 1944 AMERICAN STEEL FOUNDRIES Rotor Brake Patent |