| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 174/138E | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| 491,708 | Feb. 14, 1893 | C.W. Jefferson | Electric Motor and Dynamo Mica Insulator | ||
 | 1,284,524 | Nov. 12, 1918 | C.E. Wilson, W.H. Kempton, A.J. Bastian | Molded commutator-cylinder | |
 | 2,180,983 | Nov. 21, 1939 | R.W. Hall | Dynamo-electric machine | |