| All Patents in class 451/222 |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 2,169,159 | Aug. 08, 1939 | G. Müller | Means for Accurate Screw Cutting | metalworking machines |
| 2,184,011 | Dec. 19, 1939 | R.E. Flanders | Grinding Machine | grinder dressers |
| 2,187,227 | Jan. 16, 1940 | R.E. Flanders | Grinding Machine | cylindrical grinders |
| 2,292,875 | Aug. 11, 1942 | R.E. Flanders | Tool Carrier Control Mechanism | thread grinders |
| 2,371,685 | Mar. 20, 1945 | R.E. Flanders | Grinding Machine | cylindrical grinders |
| 2,454,916 | Nov. 30, 1948 | R.M. Gamble | Machine Tool | thread grinders |
| 2,457,383 | Dec. 28, 1948 | F.G. Krafft | Apparatus for grinding | grinders |
| 2,623,333 | Dec. 30, 1952 | W.G. Baldenhofer | Apparatus for Grinding | cylindrical grinders |
| 2,706,872 | Apr. 26, 1955 | C.H. Drury, E.V. Flanders | Grinding Machine | thread grinders |
| 2,929,172 | Mar. 22, 1960 | J.H. Pasell | Machine for cutting a succession of workpieces to a predetermined size | grinders |
