| All Patents in class 72/406 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 10,720 | Apr. 04, 1854 | S. Andrews | Drop and die forging and punching machine | drop hammers |
| 52,447 | Feb. 06, 1866 | A. Rix | Forging Apparatus | drop hammers |
| 144,638 | Nov. 18, 1873 | G. Stacy | Revolving Hammers | power hammers |
| 319,603 | Jun. 09, 1885 | W.J. Muncaster | Metal bending and straightening machine | metal straightening machines |
| 351,867 | Nov. 02, 1886 | P.J. Kearns | Rotary Hammer | rotary hammers |
| 423,048 | Mar. 11, 1890 | E.A. Harvey | Machine for Planishing Metal | embossing and knurling machines |
| 459,931 | Sep. 22, 1891 | J. Gutberlet | Machine for Sharpening Drills | power hammers |
| 510,637 | Dec. 12, 1893 | A. Galette | Machine for Sharpening Scythes | rotary hammers |
| 655,028 | Jul. 31, 1900 | W. Sneller | Rotary Draw Block Hammer | rotary hammers |
| 2,413,523 | Dec. 31, 1946 | R.M. Shaw, Jr. | Bending Machine | metal bending machines |
| 2,782,832 | Feb. 26, 1957 | R.M. Shaw, Jr. | Bending Machines | metal bending machines |
| 3,121,352 | Feb. 18, 1964 | W.B. McCardell | Tooth Forming Method and Apparatus | gear cutting tools |
| 3,555,870 | Jan. 19, 1971 | A.F. Tremblay | Gear Forming | gear making machines |
