| All Patents in class 72/450 |
Patents 16 -
30
of 80
      |
| Number | Date | Patentee | Title | Type |
| 217,725 | Jul. 22, 1879 | E.W. Bliss | Improvement in machinery for shaping sheet metal | stamping presses |
| 237,872 | Feb. 15, 1881 | W.R. Jenkins, Jr. | Power Hammer | power hammers |
| 244,370 | Jul. 19, 1881 | A. Beaudry | Power-hammer | drop hammers |
| 244,927 | Jul. 26, 1881 | J. Patterson | Power Hammer | power hammers |
| RE10,324 | May 08, 1883 | N.C. Stiles | Drop-hammer | drop hammers |
| 295,851 | Mar. 25, 1884 | H.A. Ainsworth | Metal-bending machine | metal bending machines |
| 316,539 | Apr. 28, 1885 | R. Gracey | Apparatus fr Swaging Tuyeres | metal swaging machines |
| 364,142 | May 31, 1887 | N.C. Stiles | Power-press | stamping presses |
| 379,340 | Mar. 13, 1888 | H. St. Lawrence | Power-hammer | drop hammers |
| 430,029 | Jun. 10, 1890 | W.H. Johnson | Forging Machine | forging machines |
| 435,110 | Aug. 26, 1890 | G.D. Burton | Electric Forging Machine | power hammers |
| 461,917 | Oct. 27, 1891 | A. Beaudry | Power-hammer | drop hammers |
| 462,647 | Nov. 03, 1891 | J.E. Bidwell | Spring Bending and Fitting Machine | spring making machines |
| 466,790 | Jan. 12, 1892 | W.R. Jenkins | Power Hammer | power hammers |
| 472,893 | Apr. 12, 1892 | J.R. Little | Manufacture of Metal Wheels | power hammers |
