| All Patents in class 74/420 |
Patents 1 -
10
of 18
      |
| Picture | Number | Date | Patentee | Title |
| | 8,106X | Mar. 25, 1834 | J.V. Wemple | Horse power thrashing machine |
| | 8,746X | Apr. 08, 1835 | J. Brandon | Portable Horse Power |
 | AI3 | Apr. 04, 1838 | A. Trahern, H. Heberling, W.E. Lukens, J. Heberling | Horse Power |
 | 4,595 | Jun. 27, 1846 | D. Carey | Horse Power |
 | 11,258 | Jul. 11, 1854 | W. McCord | Horse-power |
 | 26,786 | Jan. 10, 1860 | F.W. Robinson | Improvement in horse-power |
 | RE1,185 | May 14, 1861 | J. Brayley, J.A. Pitts | Improvement in horse-power |
 | 89,825 | May 04, 1869 | J.M. Albertson | Improvement in horse-powers |
 | 121,048 | Nov. 21, 1871 | L.R. Faught | Horse-power for driving cotton gins |
| | 121,932 | Dec. 19, 1871 | W. Deering | Horse Engine |
