| All Patents in class 318/675 | 
| Patents 1 - 
					8
					of 8 
       | 
| Number | Date | Patentee | Title | Type | 
| 287,511 | Oct. 30, 1883 | T.A. Edison | Electric Regulator | motor regulators | 
| 714,862 | Dec. 02, 1902 | H.W. Buck | Controlling Electric Motors | motor controls | 
| 1,018,765 | Feb. 27, 1912 | J.T. Janette | Motor-controller | motor controls | 
| 2,228,902 | Jan. 14, 1941 | A. Allen | Automatically Controlled Machine Tool and Follow-Up System | metalworking machine mechanisms | 
| 2,704,012 | Mar. 15, 1955 | D.R. Trinkle | Automatic Profiling Machine | profiling machines | 
| 2,873,416 | Feb. 10, 1959 | K.C. Allen | Weighing scale adapted servomotor system |  | 
| 3,019,377 | Jan. 30, 1962 | H.K. Brown, J.M. Morgan, Jr., J.A. Rave, Jr. | Hand Servo Control System | machine tool controls | 
| 3,084,754 | Apr. 09, 1963 | K.C. Allen | Computing scale |  |