| 1929 JAN Automatic Railroad Crossing Gate Signal |
| 1930 ENRIQUE Automatic Railroad Gate Patent |
| 1929 WILLIAM Automatic Railroad Safety Gate Art |
| 1928 PURDY Automatic Railroad Gate Patent Print |
| 1932 IMRE Automatic Railroad Gate Patent Print |
| 1929 GIUSEPPE Automatic Railroad Gate Patent |
| 1928 DANIEL Automatic Railroad Crossing Gate Signal |
| 1920 JOHN GRATKOWSKI Automatic Railroad Crossing Gate |
| 1920 ANTHONY Automatic Railroad Crossing Gate |
| 1929 MULCH Automatic Railroad Crossing Gate Art |
| 1924 BERNARD Automatic Railroad Gate Patent |
| 1931 LAWRENCE E MURRAY Automatic Railroad Crossing Gate |
| 1922 CLAPPER Automatic Railroad Crossing Gate |
| 1924 AXEL Automatic Railroad Crossing Gate Art |
| 1928 DORGAN Automatic Electric Railroad Crossing Gate |
| 1931 ALPHONSO Automatic Railroad Crossing Gate |
| 1920 PETRO Automatic Railroad Gate Patent Print |
| 1921 FRANK Automatic Railroad Gate Patent Print |
| 1928 MIHALY Automatic Railroad Gate Art Print |
| 1929 ANTONIO RAGAZZO Automatic Railroad Gate Art |
| 1928 ZOLTAN Automatic Railroad Gate Patent Print |
| 1929 ARMENAG Automatic Electromagnetic Railroad Gate |
| 1932 STEVEN KRANICTZ Automatic Railroad Gate Art |