| All Patents in class 451/446 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 78,215 | May 26, 1868 | J.S. Loomis | Improvement in machines for polishing wood | sanding machines |
| 314,596 | Mar. 31, 1885 | E. May | Machine for the Manufacturing of Pearl Buttons | button making machinery |
| 347,388 | Aug. 17, 1886 | D. Shortsleeve | Sand Feeding Mechanism for Stone Sawing Machines | stonemason |
| 411,729 | Sep. 24, 1889 | W.J. Perkins | Saw-grinding machine | saw sharpening machines |
| 637,121 | Nov. 14, 1899 | A. Huseby | Polishing-machine | sanding machines |
| 1,256,684 | Feb. 19, 1918 | G. Griesche | Stone Saw and Feeder | stonemason |
| 1,261,669 | Apr. 02, 1918 | W.E. Wright | Sawing Apparatus | |
| 2,073,079 | Mar. 09, 1937 | W. Peaslee, G.V. Johnston, F.J. Theler | Lapping Machine | grinding machines |
| 2,097,730 | Nov. 02, 1937 | A.W. Mall | Terrazzo grinding apparatus | |
| 2,135,900 | Nov. 08, 1938 | H.W. Kulp | Grinding Tool | valve grinding tools |
| 2,209,071 | Jul. 23, 1940 | E.J. Bullard | Grinding and Lapping Machine | lapping machines |
| 2,915,853 | Dec. 08, 1959 | F.J. Machovec | Portable mower conditioning unit | |
| 2,968,897 | Jan. 24, 1961 | L.C. Hammond | Machine tool | |
| 3,099,905 | Aug. 06, 1963 | P.E. Larson, P.G. Rebechini | Portable polishing tool with liquid abrasive | |
| 3,593,466 | Jul. 20, 1971 | R.M. Bell | Abrasive-compound-applicating means | |
