| All Patents in class 409/122 | 
| Patents 1 - 
					15
					of 15 
       | 
| Number | Date | Patentee | Title | Type | 
| 167,614 | Sep. 14, 1875 | H. Müller, R. Koch | Universal Turning Lathe | metal lathes | 
| 303,994 | Aug. 26, 1884 | R. Holman, D.J. White, F.H. Foster | Spiral lathe | rope and spiral cutting machines | 
| 422,663 | Mar. 04, 1890 | C.H. Trask | Milling-machine | milling machines | 
| 508,716 | Nov. 14, 1893 | G.E. Hunter | Profiling Machine | profiling machines | 
| 1,940,112 | Dec. 19, 1933 | W.D. Averill | Milling Machine | milling machines | 
| 1,959,269 | May 15, 1934 | G. Gorton | Routing and the Like Machine | milling machines | 
| 2,050,127 | Aug. 04, 1936 | B. Sassen | Tracer Controlled Cam Cutting Mechanism | milling machines | 
| 2,372,427 | Mar. 27, 1945 | C. Johnson | Machine tool control | milling machine accessories | 
| 2,443,793 | Jun. 22, 1948 | E.W. Yates, W. Trible, G.A. Lensky | Pattern Controlled Machine Tool | milling machines | 
| 2,480,807 | Aug. 30, 1949 | C.B. De Vlieg | Method and apparatus for making impeller wheels | milling machines | 
| 2,682,697 | Jul. 06, 1954 | W.B. Wigton, J. Daugherty | Machine Tool | vertical boring mills | 
| 2,895,386 | Jul. 21, 1959 | T.C. Mann | Profiling machine | routing machines | 
| 3,024,684 | Mar. 13, 1962 | M.R. Stratman | Method and Apparatus for Reproducing Contours | metalworking machine mechanisms | 
| 3,066,578 | Dec. 04, 1962 | P.F. Olton | Temperature Control of Machine Tool | metalworking machine mechanisms | 
| 3,273,182 | Sep. 20, 1966 | D.I. McDonald | Feed Control Device to Feed Tool Spindle at Rate of Tool Advance | machine tool controls |