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| All Patents in class 318/443 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,497,842 | Feb. 14, 1950 | T.A. Wetzel, T.F. Eserkaln, J.B. Armitage | Machine Tool Transmission and Control Mechanism | milling machines | |
| 2,864,046 | Dec. 09, 1958 | W.B. Ailes | Electrical control system | ||
| 2,928,290 | Mar. 15, 1960 | A.T. Godschalx, E.E. Hosea | Hydraulic Gear Shifting Control | hydraulic apparatus | |
| 2,946,902 | Jul. 26, 1960 | P.A. Hagen | Repeat cycle timers | machine tool controls | |