| Patents for T. H. Alexander |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 30,485 | Oct. 23, 1860 | J.F. Letellier | Steam Valve |
| | 107,378 | Sep. 13, 1870 | J.W. Huntoon | Improvement in Combined Corn Husker and Sheller and Grain Thrasher and Cleaner |
 | 109,146 | Nov. 08, 1870 | D.S. Shanabrook | Improvement in sawing-machines |
 | 121,396 | Nov. 28, 1871 | J.K. Milnor | Improvement in sawing-machines |
 | 123,246 | Jan. 30, 1872 | W.H. Dodge | Improvement in Countersinks |
 | 207,966 | Sep. 10, 1878 | A.L. Hill | Snout-Ring |
 | 243,895 | Jul. 05, 1881 | A.E. Hill | Hog Ringing Implement |
