| All Patents in class 74/473.3 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 1,666,422 | Apr. 17, 1928 | D.C. Klausmeyer | Master Radial Drill Speed Box |
| | 1,764,515 | Jun. 17, 1930 | D.C. Klausmeyer | Direct Reading Gear Shift Mechanism |
| | 2,332,381 | Oct. 19, 1943 | W.G. Hoelscher | Lathe Spindle Speed Control |
| | 2,464,619 | Mar. 15, 1949 | R.M. Bacon, H.J. Siekmann | Headstock Trasmission Control for Lathes |
| | 2,466,814 | Apr. 12, 1949 | H.C. Kemper, R.K. Le Blond | Lathe Headstock Gear Shifting Mechanism |
| | 2,499,152 | Feb. 28, 1950 | E.K. Morgan | Control Mechanism for Machine Tools |
| | 2,521,312 | Sep. 05, 1950 | R.M. Bacon, H.J. Siekmann | Indicating and Adjusting Mechanism for Machine Tools |
 | 3,162,059 | Dec. 22, 1964 | S.E. Farekas | Power Feed Clutch Mechanism |
