| All Patents in class 29/DIG.93 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 288,717 | Nov. 20, 1883 | A.W. McIntyre | Machine for Grinding Car Wheels | grinding machines |
| 311,099 | Jan. 20, 1885 | E.P. Baville | Machine for Threading Screws Bolts and Nuts | metal threading machines |
| 803,304 | Oct. 31, 1905 | L.A. Fletcher, W.J. Muncaster | Grinding Machine | glass grinding machines |
| 1,738,646 | Dec. 10, 1929 | B.P. Graves | Coolant Supply for Milling Machines | milling machine accessories |
| 1,903,114 | Mar. 28, 1933 | J.B. Armitage, E.J. Kearney | Machine Tool | milling machines |
| 2,209,071 | Jul. 23, 1940 | E.J. Bullard | Grinding and Lapping Machine | lapping machines |
