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