| All Patents in class 409/122 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
| | 167,614 | Sep. 14, 1875 | H. Müller, R. Koch | Universal Turning Lathe |
 | 303,994 | Aug. 26, 1884 | R. Holman, D.J. White, F.H. Foster | Spiral lathe |
 | 422,663 | Mar. 04, 1890 | C.H. Trask | Milling-machine |
| | 508,716 | Nov. 14, 1893 | G.E. Hunter | Profiling Machine |
| | 1,940,112 | Dec. 19, 1933 | W.D. Averill | Milling Machine |
| | 1,959,269 | May 15, 1934 | G. Gorton | Routing and the Like Machine |
| | 2,050,127 | Aug. 04, 1936 | B. Sassen | Tracer Controlled Cam Cutting Mechanism |
 | 2,372,427 | Mar. 27, 1945 | C. Johnson | Machine tool control |
| | 2,443,793 | Jun. 22, 1948 | E.W. Yates, W. Trible, G.A. Lensky | Pattern Controlled Machine Tool |
 | 2,480,807 | Aug. 30, 1949 | C.B. De Vlieg | Method and apparatus for making impeller wheels |
