| 1958 ENTPR Latch Construction Railway Car Hopper Doors |
| 1955 ENTPR Railway Car Construction Art Print |
| 1960 ENTPR Hopper Car Outlet Construction Art |
| 1924 ENTPR RAILWAY EQUIPMENT CO Hopper Dump Car |
| 1932 ENTPR RAILWAY EQUIPMENT CO Load Discharging Car |
| 1924 ENTPR Center Dumping Ballast Car Art Print |
| 1942 ENTPR Hopper Car Door Operating Mechanism |
| 1950 ENTPR Closure Railroad Car Hopper Discharge Chutes |
| 1956 ENTPR Railway Car Hopper Outlet Assembly |
| 1922 ENTPR Dump Car Door Operating Mechanism |
| 1933 ENTPR Load Discharging Gondola Car Art |
| 1931 ENTPR RAILWAY EQUIPMENT CO Load Discharging Car |
| 1921 ENTPR RAILWAY EQUIPMENT CO Tank Car Constructon |
| 1925 ENTPR RAILWAY EQUIPMENT CO Hopper Car Like |
| 1960 ENTPR Outlet Construction Hopper Car Art |
| 1922 ENTPR RAILWAY EQUIPMENT CO Convertible Stock Car |
| 1920 ENTPR RAILWAY EQUIPMENT CO Car Patent Print |
| 1933 ENTPR RAILWAY EQUIPMENT CO Load Discharging Car |
| 1929 ENTPR Dump Car Door Operating Mechanism Art |
| 1961 ENTPR Hopper Car Outlet Construction Art |
| 1945 ENTPR Multiservice Ballast Car Art Print |
| 1963 ENTPR Latching Railway Hopper Car Doors Art |
| 1951 ENTPR RAILWAY EQUIPMENT CO Hopper Car Door Frame |
| 1922 ENTPR RAILWAY EQUIPMENT CO Car Construction |
| 1949 ENTPR Dump Car Door Operating Mechanism Art |
| 1956 ENTPR Dump Door Mechanism A Railway Car Art |
| 1951 ENTPR Hopper Car Door Latching Means Art |
| 1920 ENTPR Car Door Operating Mechanism Art |
| 1956 ENTPR Hopper Frame Sliding Door A Railway Dump Car |
| 1958 ENTPR Ballast Car Construction Art Print |
| 1926 ENTPR Dump Car Door Operating Mechanism Art |
| 1921 ENTPR RAILWAY EQUIPMENT CO Ore Car Patent |
| 1929 ENTPR Car Door Operating Mechanism Art |
| 1922 ENTPR RAILWAY EQUIPMENT CO Dump Car Patent |
| 1924 ENTPR RAILWAY EQUIPMENT CO Load Discharging Car |
| 1925 ENTPR RAILWAY EQUIPMENT CO Dump Car Patent |
| 1939 ENTPR RAILWAY EQUIPMENT CO Load Discharging Car |
| 1939 ENTPR RAILWAY EQUIPMENT CO Railway Car Underframe |
| 1923 ENTPR RAILWAY EQUIPMENT CO Hopper Car Art |
| 1966 ENTPR RAILWAY EQUIPMENT CO Dumping Railway Car |
| 1962 ENTPR Pneumatic Discharge Hopper Car Art |
| 1921 ENTPR RAILWAY EQUIPMENT CO Convertible Box Car |
| 1924 ENTPR Railway Car Construction Art Print |
| 1952 ENTPR Car Door Locking Mechanism Art Print |
| 1932 ENTPR RAILWAY EQUIPMENT CO Car Construction |
| 1928 ENTPR RAILWAY EQUIPMENT CO Railway Car Art |
| 1935 ENTPR Railway Car Door Construction Like |
| 1923 ENTPR RAILWAY EQUIPMENT CO Dump Car Patent |
| 1927 ENTPR RAILWAY EQUIPMENT CO Car Construction |
| 1925 ENTPR Car Door Operating Mechanism Art |
| 1950 ENTPR Fulcrum Car Door Locking Means Art |
| 1927 ENTPR RAILWAY EQUIPMENT CO Dump Car Patent |
| 1932 ENTPR RAILWAY EQUIPMENT CO Dump Car Construction |
| 1955 ENTPR Wedge Acting Railway Car Hopper Frame Door |
| 1921 ENTPR Dump Car Door Operating Mechanism |
| 1922 ENTPR Car Door Locking Mechanism Art Print |
| 1921 ENTPR Convertible Gondola Ballast Car Art |
| 1966 ENTPR Railway Dump Car With Closure Sealing Means |
| 1932 ENTPR Railway Dump Car Construction Art |
| 1935 ENTPR RAILWAY EQUIPMENT CO Car Door Patent |
| 1926 ENTPR Car Door Operating Mechanism Art |
| 1933 ENTPR Railway Hopper Car Construction Art |
| 1920 ENTPR RAILWAY EQUIPMENT CO Grain Car Patent |
| 1957 ENTPR Latch Mechanism Hopper Car Doors Art |
| 1933 ENTPR RAILWAY EQUIPMENT CO Hopper Car Construction |
| 1950 ENTPR Safety Railway Car Door Operating Mechanism |
| 1959 ENTPR RAILWAY EQUIPMENT CO Railway Hopper Car |
| 1923 ENTPR Car Door Operating Mechanism Art |
| 1959 ENTPR Hopper Car Discharge Outlet Construction |
| 1925 ENTPR RAILWAY EQUIPMENT CO Car Door Locking Means |