| Patents for Hubert Howson |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 135,337 | Jan. 28, 1873 | L. Houston | Improvement in mortising machines | mortising machines |
| 136,794 | Mar. 11, 1873 | C. Van Haagen | Slide Rests for Lathes | metal lathes |
| 139,148 | May 20, 1873 | J. Harvey | Improvement in machines for bending pipe-stems | wood bending machines |
| 140,938 | Jul. 15, 1873 | M.L. Orum, C.H. Mellor | Improvement in rotary cutters | cutters |
| 142,493 | Sep. 02, 1873 | F.B. Miles | Planing Machines | metal planers |
| 142,694 | Sep. 09, 1873 | F.E. Hahn | Improvement in boring-mills | vertical boring mills |
| 143,667 | Oct. 14, 1873 | G.W. Carr | Corn Huskers | corn huskers |
| 149,020 | Mar. 24, 1874 | A. Wood | Metal Shaft Turning Lathes | shaft turning lathes |
| 156,989 | Nov. 17, 1874 | H. Disston | Improvement in Saw Grinding Machines | making sawblades |
| 157,634 | Dec. 08, 1874 | W.J. Reagan | Improvement in handles for saws | saw handles |
| 159,723 | Feb. 09, 1875 | C. Van Haagen | Improvement in grinding apparatus | drill grinders |
| 161,746 | Apr. 06, 1875 | W.E. Brock | Improvement in lumber | |
| 162,355 | Apr. 20, 1875 | C. Disston | Plaster's Trowel | plasterer |
| 162,444 | Apr. 20, 1875 | T. Wilbraham | Improvement in metal-turning lathes | metal lathes |
| 163,162 | May 11, 1875 | H. Disston | Improvement in Saw Sets | saw sets |
