| All Patents in class 408/106 |
Patents 1 -
15
of 20
      |
| Number | Title | Classification(s) |
| 6,941 | Machine for Preparing Hubs for Boxes | 160/176.1R, 408/106 |
| 11,364 | Self-centering hub-boring machine | 408/106 |
| 31,257 | Centering Bars of Iron | 33/672, 408/105, 408/106 |
| 60,936 | Centering Tool | 33/649, 408/106 |
| 80,837 | Improvement in hub-boring machines | 408/106 |
| 145,894 | Hub-Boring Machines | 408/106, 408/85 |
| 166,538 | Chucks and Centerers | 279/116, 408/106 |
| 259,447 | Machine for boring axle-holes in hubs, &c. | 144/100, 408/106 |
| 407,413 | Pipe Thread Cutting Machine | 408/106, 470/176, 470/67 |
| 434,424 | Pipe Threading and Cutting Off Machine | 408/106, 408/28, 470/69 |
| 443,501 | Pipe Threading Machine | 408/106 |
| 450,978 | Work-centering apparatus | 408/106, 408/77, 82/150 |
| 486,407 | Hub-boring machine | 408/106 |
| 666,753 | Centering Tool | 408/106 |
| 667,880 | Metal-working machine | 408/106 |
