| All Patents in class 451/54 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 152,572 | Jun. 30, 1874 | G. Munger | Improvement in the processes for smoothing wood surfaces | sanding machines |
| 1,637,487 | Aug. 02, 1927 | F.M. Kern | Process of Sizing and Finishing Articles of Fiber | grinding machines |
| 1,767,321 | Jun. 24, 1930 | H.F. Skillings | Abrasive Wheel | grinder wheels |
| 2,932,205 | Apr. 12, 1960 | T.B. Keesling | Power operated tool attachment for electric drills and the like | handheld power tool accessories |
| 7,585,206 | Sep. 08, 2009 | J.R. Memmelaar, Jr. | Spool to Spool Continuous Through Feed System | centerless grinders |
