| All Patents in class 76/80.5 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 896,357 | Aug. 18, 1908 | R.S. Brown | Machine for Sharpening Cutter Teeth | tool grinders |
| 2,318,456 | May 04, 1943 | A.N. Blum | Cutting chain sharpener | bench or pedestal grinders |
| 2,353,956 | Jul. 18, 1944 | L.W. Enholm | Sharpener for mortise chain cutters | cutter grinding |
| 2,459,233 | Jan. 18, 1949 | A.W. Mall | Saw sharpener | sharpening machines |
| 3,006,222 | Oct. 31, 1961 | J. McEwan | Apparatus for sharpening chain saws | |
| 4,242,926 | Jan. 06, 1981 | N.T. Anton | Device for sharpening saw chains | chainsaw sharpeners |
