| All Patents in class 200/5R |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 583,935 | Jun. 08, 1897 | F.E. Case, W.B. Potter | Series Parallel Controller |
 | 870,595 | Nov. 12, 1907 | L.L. Tatum | Controller |
 | 870,596 | Nov. 12, 1907 | L.L. Tatum | Motor-controller |
 | 871,970 | Nov. 26, 1907 | E.W. Stull | System of motor control |
| | 904,851 | Nov. 24, 1908 | W.O. Duntley, H.J. Kimman | Controller for electric drills |
| | 911,592 | Feb. 09, 1909 | J.T. Janette | Multiple switch-starter |
| | 991,431 | May 02, 1911 | W.O. Duntley | Controller for electric drills |
 | 1,587,566 | Jun. 08, 1926 | H.B. Tuthill | Electric-motor unit |
| | 1,760,257 | May 27, 1930 | J.A. Smith | Switch |
 | 1,976,048 | Oct. 09, 1934 | H.B. Tuthill, H.F. Caldwell | Motor driven lathe head |
