| All Patents in class 74/815 |
Patents 1 -
10
of 23
      |
| Picture | Number | Date | Patentee | Title |
| | 469,377 | Feb. 23, 1892 | I.P. Richards | Rotary Tool Holder for Lathes |
 | 531,817 | Jan. 01, 1895 | H.C. Warren | Precision-index |
| | 1,426,778 | Aug. 22, 1922 | W.A. Salter | Multiple Turret Tool Holder |
| | 1,474,438 | Nov. 20, 1923 | E.A. Muller | Turret Head for Machine Tools |
| | 1,750,746 | Mar. 18, 1930 | H. Deutsch | Machine Tool Work Holder |
| | 2,086,849 | Jul. 13, 1937 | E.P. Bullard, E.H. Johnson | Carrier Mechanism |
| | 2,339,864 | Jan. 25, 1944 | H.A. Krueger | Dividing Head |
| | 2,341,383 | Feb. 08, 1944 | W.J. Johnson | Precision Boring Machine |
| | 2,342,539 | Feb. 22, 1944 | G. Gorton | Indexing or Positioning Head |
| | 2,357,329 | Sep. 05, 1944 | J.R. Hansen | Dividing Head |
