| All Patents of Type: corn and grain separators |
Patents 1 -
15
of 35
      |
| Number | Date | Patentee | Title | Type |
| 2,467 | Feb. 21, 1842 | A. Ralston | Grain Separator | corn and grain separators |
| 5,322 | Oct. 09, 1847 | H. Berdan | Grain and straw separator | corn and grain separators |
| 5,509 | Apr. 11, 1848 | A. Smith | Grain Separator | corn and grain separators |
| 6,235 | Mar. 27, 1849 | D. Woodbury | Improvement in Grain Separators | corn and grain separators |
| RE342 | Jan. 15, 1856 | A. Ralston | Grain Separator | corn and grain separators |
| 18,444 | Oct. 20, 1857 | A. Gaar | Screen for grain-separators | corn and grain separators |
| 27,171 | Feb. 14, 1860 | B.T. Trimmer | Grain Separator | corn and grain separators |
| 27,941 | Apr. 17, 1860 | G. Westinghouse, Sr. | Grain-separator | corn and grain separators |
| 30,932 | Dec. 18, 1860 | F.W. Robinson | Improvement in grain-separators | corn and grain separators |
| 36,611 | Oct. 07, 1862 | A. Gordon | Grain Separator | corn and grain separators |
| 39,093 | Jun. 30, 1863 | J. Fergusson, C.S. Burt | Grain separator | corn and grain separators |
| 41,660 | Feb. 16, 1864 | S. Adams | Improvement in grain-separators | corn and grain separators |
| XC-1,900 | Sep. 23, 1865 | J. Kerr | Grain separator, called "Kerr's improved Grain Separator" | corn and grain separators |
| 79,715 | Jul. 07, 1868 | D.S. Yeakel | Grain Separator | corn and grain separators |
| 89,589 | May 04, 1869 | E. McLane | Corn Separator | corn and grain separators |
