| All Patents in class 200/6R |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 684,188 | Oct. 08, 1901 | J. Burke | Brush-holder |
 | 1,548,020 | Aug. 04, 1925 | S.D. Black, A.G. Decker | Reversing means for electric tools |
 | 1,742,109 | Dec. 31, 1929 | L.J. Weber | Electric switch mechanism |
| | 1,996,468 | Apr. 02, 1935 | H. Ernst | Electrical Control for Hydraulic Motors |
| | 2,203,297 | Jun. 04, 1940 | B.R. Granberg | Control mechanism |
| | 2,650,961 | Sep. 01, 1953 | I.A. Weaver | Pickup Device for Use with Balance Testing Machines |
| | 2,831,361 | Apr. 22, 1958 | J.C. Hollis | Machine Tool Feed Transmission and Controls Therefor |
