| 1927 FIRM J A MAFFEI Locomotive Patent Print Art |
| 1927 NEEBE Locomotive Crosshead Guide Patent |
| 1927 COMMW STEEL Locomotive Underframe Patent |
| 1927 BLUNT Truck For Locomotive Engines Patent |
| 1927 NEEBE Locomotive Driving Mechanism Patent |
| 1927 GEN ELECTRIC Locomotive Patent Print Art |
| 1927 COMMW STEEL Locomotive Structure Patent |
| 1927 SHEEHAN Locomotive Underframe Patent Print |
| 1927 PFLAGER HARRY Locomotive Patent Print Art |
| 1927 GEN ELECTRIC Locomotive Or Car Body Patent |
| 1927 GARRETT Locomotive Or Car Body Patent Print |
| 1927 STACK Ventilator For Locomotive Cabs Patent |
| 1927 MCGINNIS Heavy Duty Locomotive Patent Print |
| 1927 DAVID Locomotive Whistle Amplifier Patent |
| 1927 BRUCE Locomotive Boiler Support Patent |
| 1927 WARREN GLENN Locomotive Patent Print Art |
| 1927 MOHUN JOHN Locomotive Patent Print Art |
| 1927 PFLAGER Locomotive Structure Patent Print |
| 1927 HEINRICH WIRTH Locomotive Patent Print Art |
| 1927 SHEEHAN Electric Locomotive Truck Patent |
| 1927 HARBEN WHITELEGG Steam Locomotive Patent |
| 1927 LOUIS Locomotive Driving Mechanism Patent |
| 1927 FELLERS Tractor Locomotive Patent Print Art |
| 1927 COMMW STEEL Locomotive Patent Print Art |
| 1927 BRUCE Locomotive Rear Frame Patent Print |
| 1927 BRUCE ALFRED Locomotive Frame Patent Print |