| All Patents in class 72/456 |
Patents 1 -
10
of 45
      |
| Picture | Number | Date | Patentee | Title |
| | 10,274 | Nov. 29, 1853 | J.W. Peer | Vertical Trip Hammer |
| | 48,394 | Jun. 27, 1865 | M. Hastings | Improved Gold-Beating Hammer |
| | 58,880 | Oct. 16, 1866 | J.P. Noyes | Drop Hammer |
| | 64,567 | May 07, 1867 | T.F. Preston | Power Hammer |
| | 99,958 | Feb. 15, 1870 | T. Shaw | Improved Apparatus for Forging Metals |
| | 118,316 | Aug. 22, 1871 | L.L. Whitlock | Imprvement in Machines for Lifting Drop Weights |
| | 172,246 | Jan. 18, 1876 | L. Chapman | Metal Hammering-Machine |
| | 213,326 | Mar. 18, 1879 | F. Ecaubert | Punching-Press |
| | 243,986 | Jul. 05, 1881 | S. Shetter | Trip Hammer |
| | 333,486 | Dec. 29, 1885 | H. St. Lawrence | Forging Machine |
