Patents for Edwin S. Pillsbury |
Patents 1 -
6
of 6
|
Number | Date | Patentee | Title | Type |
583,933 | Jun. 08, 1897 | E.S. Pillsbury | Electric Motor | |
620,609 | Mar. 07, 1899 | F. Schwedtmann, E.S. Pillsbury | Motor | electric motors |
718,518 | Jan. 13, 1903 | E.S. Pillsbury | Electric motor | electric motors |
1,093,074 | Apr. 14, 1914 | E.S. Pillsbury | Electric motor | electric motors |
1,122,633 | Dec. 29, 1914 | E.S. Pillsbury | Dynamo-electric machine | induction motors |
1,157,179 | Oct. 19, 1915 | E.S. Pillsbury | Centrifugal circuit-changing device for electric motors | induction motors |