| Patents for Henry Howson |
Patents 1 -
15
of 45
      |
| Number | Date | Patentee | Title | Type |
| 13,485 | Aug. 28, 1855 | W.O. Bisbee | Machine for splitting fire-wood | firewood machines |
| 13,878 | Dec. 04, 1855 | M. Keller | Machine for cutting fronts and backs of violins | specialty woodworking machines |
| 14,058 | Jan. 08, 1856 | C. Hammond | Attaching Hammer-Heads to Shafts | hammer handles |
| 14,427 | Mar. 11, 1856 | E. Wight | Dovetailing-machine | dovetailing machines |
| 14,789 | Apr. 29, 1856 | S.W. Lowe | Machine for Embossing and Printing | printing presses |
| 19,736 | Mar. 23, 1858 | E.S. Gardner | Improvement in tracks for city railways | track and switches |
| 19,740 | Mar. 23, 1858 | J. Vickerstaff | Knitting Machine | knitting machines |
| 19,915 | Apr. 13, 1858 | A.B. Davis | Corn Sheller | corn shellers |
| 20,313 | May 18, 1858 | H. Smith | Device Attached to Handsaws for Squaring and Marking | combination saws |
| 21,951 | Nov. 02, 1858 | J.S. Ford | Gas Fitter's Vise | |
| 22,561 | Jan. 11, 1859 | J.L. Knowlton | Stump-extractor | |
| 23,445 | Apr. 05, 1859 | C. Chambers, Jr. | Paper Folding Machine | |
| 27,354 | Mar. 06, 1860 | H. Disston | Method of Securing Handles on Handsaws | saw nuts |
| 28,214 | May 08, 1860 | R.R. Taylor | Puddling furnace | steel making furnaces |
| 28,565 | Jun. 05, 1860 | T.S. Disston | Machine for making tabs for crosscut saws | tool maker |
