| All Patents in class 74/440 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 79,605 | Jul. 07, 1868 | A. Sibley | Machine Gearing | industrial machine gearing |
| 272,940 | Feb. 27, 1883 | B.F. Bergh | Gear-wheel | industrial machine gearing |
| 472,517 | Apr. 12, 1892 | O.J. Beale | Worm and Worm Shaft | |
| 1,366,770 | Jan. 25, 1921 | F.M. Davis | Gearing | metalworking machine gearing |
| 1,820,370 | Aug. 25, 1931 | R.C. Eugene, E.H. Aldeborgh | Dial Gauge | |
| 1,978,132 | Oct. 23, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 2,002,644 | May 28, 1935 | W.M. Pohl | Adjustable Worm Gearing | milling machine accessories |
| 2,070,807 | Feb. 16, 1937 | W.D. Archea, E.G. Roehm | Backlash Eliminator | milling machines |
| 2,163,836 | Jun. 27, 1939 | F.S. Haas | Backlash-Eliminating Mechanism for Machine Tools | grinding machines |
| 2,250,369 | Jul. 22, 1941 | G. Gorton | Antibacklash Mechanism for Rotary Cutter Spindles of Machine Tools | milling machines |
| 2,616,302 | Nov. 04, 1952 | G.A. Wahlmark | Antifriction transmission | |
| 2,724,289 | Nov. 22, 1955 | W.A. Wight | Coupling apparatus | industrial machine gearing |
| 2,896,465 | Jul. 28, 1959 | J.N. Flannery, J.B. Armitage | Backlash Eliminator | milling machines |
| 3,151,494 | Oct. 06, 1964 | R.K. Sedgwick | Backlash Eliminator | rotary tables |
| 4,554,842 | Nov. 26, 1985 | D.B. Wood, III | Anti-backlash Mechanism for Machine Drive | metalworking machine mechanisms |
