| All Patents in class 72/412 |
Patents 1 -
15
of 16
      |
| Number | Title | Classification(s) |
| 801X | Mode of Making Stove Pipes | 72/412 |
| 1,553 | Manner of Manufacturing Screw-Augers | 72/412, 72/475 |
| 56,602 | Improved Dies for Forming the Heads of Wrenches | 72/374, 72/404, 72/412, 76/114 |
| 109,115 | Improvement in apparatus for fitting and setting axles | 144/256.3, 72/412, 72/454 |
| 138,617 | Swaging Machines | 131/86, 300/18, 72/412, 72/466.9 |
| 414,030 | Steam Hammer for Forging Steel Wheels | 72/412 |
| 542,127 | Circular Flanging Machine | 72/412 |
| 568,911 | Welding Machine | 72/412, 72/436 |
| 578,731 | Wrought Metal Gear Wheel and Mechanism for Making Same | 29/893.34, 72/412, 74/450 |
| 672,552 | Shaft-upsetting hammer | 72/412 |
| 877,315 | Metal Swaging Machine | 72/412, 72/416, 72/437 |
| 1,121,675 | Power slip-joint-forming machine | 72/332, 72/404, 72/412 |
| 1,273,441 | Method or Process of Nurling | 72/412, 72/68, 72/88 |
| 1,910,839 | Tool for punching, riveting, and like operations | 140/154, 30/191, 30/363, 72/409.11, 72/409.12, 72/412 |
| 2,363,931 | Joggling tool | 269/110, 72/412 |
