| All Patents in class 310/247 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 526,083 | Sep. 18, 1894 | A.W. Meston | Electric motor | AC motors |
| 1,208,981 | Dec. 19, 1916 | A. Kimble | Dynamo-electric machine | AC motors |
| 1,378,565 | May 17, 1921 | T. Schou | Brush-holder | motor brush holders |
| 1,405,596 | Feb. 07, 1922 | J.D. Karle | Brush holder | motor brush holders |
| 1,475,153 | Nov. 20, 1923 | H. Athenas | Portable electric combination drill | handheld power drills |
| 1,521,605 | Jan. 06, 1925 | F. Diehl | Brush holder for dynamo-electric machines | motor brush holders |
| 2,032,084 | Feb. 25, 1936 | I.H. Dunham | Brush assembly | motor brush holders |
| 2,449,764 | Sep. 21, 1948 | G.G. Bluemink | Brush holder | motor brush holders |
| 2,483,897 | Oct. 04, 1949 | C.J. Godfrey | Optical Precision Gauge | optical measuring gauges |
| 2,693,541 | Nov. 02, 1954 | L.C. Pratt | Portable electric motor for hand drills | handheld power drills |
| 3,247,408 | Apr. 19, 1966 | P.G. Rebechini | Brush assembly | motor brush holders |
| 3,430,084 | Feb. 25, 1969 | G.D. Hall, R.H. Huber, R.W. Wagner | Electric motor and brush assembly for a portable tool | handheld power tools |
