| All Patents in class 172/754 |
Patents 1 -
10
of 26
      |
| Picture | Number | Date | Patentee | Title |
 | FX-3,084 | Mar. 17, 1819 | Z. Zadock Harris | Plough |
| | 4,325X | Jan. 28, 1826 | S. McCormick | Plough |
| | 4,763X | May 18, 1827 | R. Sweeny | Cast iron plough |
| | 4,804X | Jun. 27, 1827 | W. Beach | Plow |
| | 5,566X | Jul. 10, 1829 | J. Boynton | Casting of Iron Ploughs in one Entire Piece |
| | 5,689X | Oct. 23, 1829 | T. Miller | Plough |
| | 5,775X | Jan. 13, 1830 | J.H. Conklin | Improvement in cast iron plow-points |
 | 6,338X | Jan. 12, 1831 | E.M. Waggener | Bar-Share Plow |
| | 6,596X | Jun. 13, 1831 | C.H. McCormick | Side-hill plow |
| | RX-70 | Dec. 28, 1831 | H. Deats | Plow |
