| Patents for Charles Howson |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 34,410 | Feb. 18, 1862 | T. Crook, Jr., A.B. Davis | Corn Sheller | corn shellers |
| 42,738 | May 17, 1864 | R. Barkley, L. Semple | Grindstone-dresser | grinder dressers |
| 43,301 | Jun. 28, 1864 | L.B. Flanders | Improvement in steam-boilers | stationary boilers |
| 43,577 | Jul. 19, 1864 | L.B. Flanders | Improvement in steam-boilers | stationary boilers |
| 44,296 | Sep. 20, 1864 | L.B. Flanders | Improvement in apparatus for boring cylinders | drilling and boring |
| 46,843 | Mar. 14, 1865 | J.G. Baker | Improved Saw Grinding Machine | making sawblades |
| 81,126 | Aug. 18, 1868 | E. Andrews | Improvement in saw-grinding machines | making sawblades |
