| All Patents in class 475/3 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 13,634 | Oct. 09, 1855 | C. Bishop | Corn Sheller | corn shellers |
| 168,955 | Oct. 19, 1875 | J.B. Annin | Differential Gear for Traction Engines | traction engine propulsion components |
| 1,026,595 | May 14, 1912 | R. Milne | Feeding attachment for drill-spindles | drill presses |
| 1,305,616 | Jun. 03, 1919 | N.H. Norris | Combination differential direct-power drive and friction-clutch pulley | industrial machine clutches |
| 1,424,538 | Aug. 01, 1922 | C.A. Widmer | Drill press | drill presses |
| 2,933,986 | Apr. 26, 1960 | W. Schroeder | Spindle Control Mechanism | milling machines |
