| All Patents in class 310/68E |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 1,013,780 | Jan. 02, 1912 | T. Kargau | Centrifugal switch for alternating-current motors |
 | 1,093,074 | Apr. 14, 1914 | E.S. Pillsbury | Electric motor |
| | 1,540,038 | Jun. 02, 1925 | M.H. Spielman | Electric motor |
| | 1,853,865 | Apr. 12, 1932 | F.S. Kingston | Electric motor |
| | 1,934,909 | Nov. 14, 1933 | E. Bretch | Alternating Current Motor |
 | 1,979,480 | Nov. 06, 1934 | G.H. Leland | Circuit Controlling Means for an Induction Motor |
| | 4,386,290 | May 31, 1983 | G.J. Monette | Centrifugal actuator for A.C. induction motor |
