| All Patents in class 74/372 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 683,525 | Oct. 01, 1901 | H.A. Tuttle | Friction-clutch | industrial machine clutches |
| 745,812 | Dec. 01, 1903 | W.E. Gang, G.W. Hart | Device for transmitting motion | metalworking machine mechanisms |
| 771,077 | Sep. 27, 1904 | A.B. Landis | Change-speed gearing | industrial machine gearing |
| 795,222 | Jul. 18, 1905 | B.M. Hanson | Gearing for lathes | metal lathes |
| 877,404 | Jan. 21, 1908 | E.P. Bullard, Jr. | Combined Changeable-Speed and Brake Mechanism | metalworking speed changing mechanisms |
| 890,211 | Jun. 09, 1908 | S.H. Bullard | Machine-Tool-Operating Mechanism | metalworking machine clutches |
| 1,003,315 | Sep. 12, 1911 | H. Baerbalck, C.D. Gibson | Gearing | metal lathes |
| 1,683,448 | Sep. 04, 1928 | C.M. Conradson | Selective Geared Head Lathe | metalworking machine mechanisms |
| 2,302,575 | Nov. 17, 1942 | E.G. Roehm, M. Romaine | Backlash Eliminator for Spindle Drives | metalworking machine mechanisms |
