| All Patents in class 318/778 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 664,190 | Dec. 18, 1900 | E. Thomson | Alternating-current electric motor |
| | 714,824 | Dec. 02, 1902 | A. Schwartz | Process of Starting Induction Motors |
 | 733,149 | Jul. 07, 1903 | P.E. Chapman | Method of changing the frequency of single-phase induction-motors |
| | 924,725 | Jun. 15, 1909 | S.R. Bergman | Single Phase Motor |
 | 1,072,422 | Sep. 09, 1913 | J. Burke | Electric controlling apparatus |
 | 1,566,939 | Dec. 22, 1925 | A.F. Welch | Dynamo-electric machine |
 | 1,947,533 | Feb. 20, 1934 | J.D. Nies | Automatic control for motors |
 | 3,045,153 | Jul. 17, 1962 | R.J. Carlson | System for controlling the starting torque of induction motor drives |
| | 3,596,157 | Jul. 27, 1971 | R. Zechlin | Oscillator Energized Motor Control |
