| All Patents in class 74/342 |
Patents 31 -
43
of 43
      |
| Number | Date | Patentee | Title | Type |
| 2,251,707 | Aug. 05, 1941 | G.W. Luning, W.F. Groene | Feedbox for Lathes | metalworking machine mechanisms |
| 2,280,596 | Apr. 21, 1942 | G.K. McKee | Machine tool | drill presses |
| 2,332,381 | Oct. 19, 1943 | W.G. Hoelscher | Lathe Spindle Speed Control | metal lathe mechanisms |
| 2,355,623 | Aug. 15, 1944 | E.P. Bullard | Transmission | |
| 2,415,125 | Feb. 04, 1947 | G. Davenport | Shaping Machine Trasmission | metal shapers |
| 2,447,317 | Aug. 17, 1948 | G. Davenport | Gear Changing Mechanism for Shaping Machines | metal shapers |
| 2,515,710 | Jul. 18, 1950 | M.P. Holmes | Gear-shifting Mechanism | metalworking speed changing mechanisms |
| 2,622,454 | Dec. 23, 1952 | C.A. Boehm | Auxiliary transmission mechanism for milling machines | milling machines |
| 3,274,842 | Sep. 27, 1966 | R.J. Huff | Lathe Transmission Mechanism | engine lathes |
| 3,274,843 | Sep. 27, 1966 | H.E. Luebkemann | Lathe Transmission Mechanism | metalworking machine mechanisms |
| 3,500,696 | Mar. 17, 1970 | W.A. Berube | Two-speed power tool | handheld power tools |
| 4,449,866 | May 22, 1984 | R.E. Stobbe, E.R. Lohneis | Servo-controlled Spindle Drive System | metalworking machine mechanisms |
| 4,643,037 | Feb. 17, 1987 | C.J. Kis | Gear Change Mechanism | metalworking speed changing mechanisms |
