| All Patents in class 72/88 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 6,441X | Apr. 01, 1831 | H. Knowles | Improved mode of manufacturing wood-screws | screw machines |
| 6,305 | Apr. 10, 1849 | N.C. Sanford, L.B. Smith | Machine for regulating the twist and diameter of screw-augers | tool making machines |
| 355,692 | Jan. 11, 1887 | C. Harris | Saw set | saw sets |
| 374,335 | Dec. 06, 1887 | W. Hainsworth, R. Bagaley | Metal Rolling Machine | metal rolling machines |
| 419,292 | Jan. 14, 1890 | G.F. Simons | Method of Making Irregular Shaped Metal Articles | metal swaging machines |
| 877,135 | Jan. 21, 1908 | C. Stecher | Flanging-machine | |
| 1,273,441 | Jul. 23, 1918 | E.A. Bardwell | Method or Process of Nurling | pin punches |
| 2,259,640 | Oct. 21, 1941 | J.H. Hoern | Thread Forming Apparatus | metal threading machines |
| 2,367,398 | Jan. 16, 1945 | J.H. Hoern | Thread Rolling Apparatus | metal threading machines |
| 2,995,964 | Aug. 15, 1961 | J.C. Drader | Machine | gear making machines |
| 3,043,169 | Jul. 10, 1962 | W.B. McCardell | Apparatus for Pressure Forming Toothed Elements | gear making machines |
| 3,062,077 | Nov. 06, 1962 | W.B. McCardell | Method and Apparatus for Effecting a One-Location Assembly | automotive tools |
| 3,115,052 | Dec. 24, 1963 | W.B. McCardell | Tooth Forming Tool | gear cutting tools |
| 3,183,697 | May 18, 1965 | W.B. McCardell | Locting Fixture | part fixtures |
| 3,214,951 | Nov. 02, 1965 | W.B. McCardell | Apparatus for Rolling Teeth on Tubular Elements | gear making machines |
