| All Patents of Type: motor brushes |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| CA-12,341 | Feb. 10, 1881 | E.J. Houston, E. Thomson | Improvements on automatic adjusters for commutator brushes of dynamo-electric machines | motor brushes |
| 345,336 | Jul. 13, 1886 | E. Thomson | Commutator brush | motor brushes |
| 466,448 | Jan. 05, 1892 | F.J. Sprague | Commutator-brush and holder for dynamo-electric machines and motors | motor brushes |
| 518,913 | Apr. 24, 1894 | G.W. Brown | Commutator-brush | motor brushes |
| 959,634 | May 31, 1910 | S. Sparrow | Brush or collector for electrical machines | motor brushes |
| GB-191,511,790 | Aug. 10, 1916 | H.B. Whitmore | Improvements in Short-Circuiting and Brush Lifting Gear for Alternating Current Motors | motor brushes |
| 1,275,458 | Aug. 13, 1918 | H.I. Finch, C.R. Meston | Brush-holder for commutator mechanisms | motor brushes |
| 1,665,550 | Apr. 10, 1928 | J.T. Janette | Contact holder | motor brushes |
