| Patents for H. S. Sprague |
Patents 1 -
15
of 99
      |
| Number | Title | Classification(s) |
| 75,552 | Woodworker's Leg Vise Jaw | 269/262, 269/286 |
| 82,926 | Improvement in mortising-machines | 144/75, 144/84 |
| 84,722 | Improvement in saws | 83/837 |
| 98,475 | Improvement in Spoke-Shave | 30/281 |
| 101,249 | Improvement in Lathes for Squared Nuts, etc. | 269/142, 269/269, 269/73, 409/303, 470/107 |
| 101,258 | Improvement in saws | 83/841 |
| 101,343 | Improvement in saw-mills | 83/699.21, 83/699.41 |
| 111,164 | Improvement in saws | 83/849 |
| 112,883 | Improvement in saw-mills | 83/662 |
| 118,806 | Improvement in augers | 408/207 |
| 128,189 | Improvement in wood-sawing machines | 83/113, 83/435.2 |
| 129,378 | Improvement in head-blocks for sawmills | 83/723 |
| 131,252 | Improvement in Self-Adjusting Pipe Wrenches | 81/99 |
| 133,135 | Improvement in bolt-machines | 470/141, 470/144, 470/149 |
| RE5,187 | Improvement in machines for turning logs | 83/711 |
