| All Patents in class 475/159 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 252,537 | Jan. 17, 1882 | J. Stewart | Speed Gearing | industrial machine speed and direction changing mechanisms |
| 1,385,283 | Jul. 19, 1921 | E.B. Smith, A.H. Loucks | Lubricator | industrial machine clutches |
| 2,141,209 | Dec. 27, 1938 | G.W. Emrick | Tapping attachment | tapping heads and chucks |
| 2,295,299 | Sep. 08, 1942 | R.M. Shaw, Jr. | Power Transmission | metalworking power transmission |
| 2,544,061 | Mar. 13, 1951 | E.T. Barnett | Speed change driving head for power-driven machine | drill presses |
| 3,448,828 | Jun. 10, 1969 | C.K. Goldberg | Drive speed control | sheet metal brakes |
