| Patents for Electra Motors, Inc. |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| D154,811 | Aug. 09, 1949 | N. Shaeffer | Design for a motor | electric motors |
| D163,134 | May 01, 1951 | B.N. Palm | Motor casing | electric motors |
| 2,893,253 | Jul. 07, 1959 | P.K. Beemer | Variable pitch pulley mechanism | industrial machine pulleys and belt drive mechanisms |
| 2,954,857 | Oct. 04, 1960 | B.N. Palm | Transmission mechanism of the fluid shear type | power transmissions |
| 3,154,959 | Nov. 03, 1964 | B.N. Palm | Variable speed drive | industrial machine pulleys and belt drive mechanisms |
| 3,224,289 | Dec. 21, 1965 | B.N. Palm | Motorized head pulley | conveyors and hoppers |
