| All Patents in class 74/820 |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 2,188,996 | Feb. 06, 1940 | L.O. Carlsen | Indexing mechanism | gear making machines |
| 2,259,948 | Oct. 21, 1941 | E.P. Bullard | Indexing Mechanism for Machine Tools | |
| 2,358,503 | Sep. 19, 1944 | L.E. Godfriaux | Turret Indexing Mechanism | vertical turret lathes |
| 2,635,326 | Apr. 21, 1953 | C.H. Johnson, L.E. Godfriaux | Automatic Turret Indexing Mechanism for Lathes | metalworking machine mechanisms |
| 2,767,598 | Oct. 23, 1956 | F.G. Burg | Speed control system for machine tools | drill presses |
| 2,868,032 | Jan. 13, 1959 | C.E. Miller | Indexing Mechanism | multiple spindle lathes |
| 2,870,659 | Jan. 27, 1959 | F.G. Burg | Machine tool having a turret head | drill presses |
| 4,080,849 | Mar. 28, 1978 | W.N. Miles, D.D. Walker, M.L. Benjamin | Precision Heavy Duty Indexer | indexers and dividers |
