| All Patents in class 172/754 |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| FX-3,084 | Mar. 17, 1819 | Z. Zadock Harris | Plough | plows |
| 4,325X | Jan. 28, 1826 | S. McCormick | Plough | plows |
| 4,763X | May 18, 1827 | R. Sweeny | Cast iron plough | plows |
| 4,804X | Jun. 27, 1827 | W. Beach | Plow | plows |
| 5,566X | Jul. 10, 1829 | J. Boynton | Casting of Iron Ploughs in one Entire Piece | plows |
| 5,689X | Oct. 23, 1829 | T. Miller | Plough | plows |
| 5,775X | Jan. 13, 1830 | J.H. Conklin | Improvement in cast iron plow-points | plows |
| 6,338X | Jan. 12, 1831 | E.M. Waggener | Bar-Share Plow | auxiliary wrenches |
| 6,596X | Jun. 13, 1831 | C.H. McCormick | Side-hill plow | plows |
| RX-70 | Dec. 28, 1831 | H. Deats | Plow | plows |
| 6,899X | Jan. 14, 1832 | T.A. Whities | Plough | plows |
| 6,912X | Jan. 26, 1832 | B. Woodcock | Self sharpening plough | plows |
| 6,949X | Feb. 28, 1832 | S. Ogle | Self sharpening plough | plows |
| 7,026X | Apr. 27, 1832 | J.B. Norton | Self sharpening plough | plows |
| 7,045X | May 08, 1832 | J. Dudley | Plough | plows |
