| 1925 HARRY Dumping Unit For Motor Trucks Patent |
| 1925 MCCORMICK Hoist For Dumping Trucks Patent |
| 1925 DEWALD ETS Dumping Vehicle Patent Print Art |
| 1925 EMAN Power Operated Dumping Truck Patent |
| 1925 PROUT Drop Door For Dumping Cars Patent |
| 1925 HUG Compartment Dumping Vehicle Patent |
| 1925 PHILIP VINCENT Self Dumping Scow Patent |
| 1925 M H TREADWELL COMPANY Dumping Car Patent |
| 1925 FURR Automatic Dumping Wagon Patent Print |
| 1925 GRABBE ELMER Dumping Wagon Body Patent |
| 1925 JUELFS Wagon Or Truck Dumping Body Patent |
| 1925 RYZIN Compartment Dumping Car Patent Print |
| 1925 SNYDER CECIL Dumping Truck Patent Print Art |
| 1925 LEWIS C CALTRIDER Dumping Truck Patent |
| 1925 LEE SAXON Dumping Body Patent Print Art |
| 1925 LEON FONTAINE Dumping Vehicle Patent Print |
| 1925 ENGLER Automatic Dumping Mechanism Patent |
| 1925 PHILIP Self Dumping Scow Patent Print Art |
| 1925 GALFORD EVERETT Dumping Truck Patent Print |
| 1925 ASTROM CARL Dumping Car Patent Print Art |
| 1925 OTTO BALLERT Dumping Truck Patent Print Art |
| 1925 GOOSSEN Vehicle Dumping Body Patent Print |