| All Patents in class 451/446 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 78,215 | May 26, 1868 | J.S. Loomis | Improvement in machines for polishing wood |
| | 314,596 | Mar. 31, 1885 | E. May | Machine for the Manufacturing of Pearl Buttons |
 | 347,388 | Aug. 17, 1886 | D. Shortsleeve | Sand Feeding Mechanism for Stone Sawing Machines |
| | 411,729 | Sep. 24, 1889 | W.J. Perkins | Saw-grinding machine |
| | 637,121 | Nov. 14, 1899 | A. Huseby | Polishing-machine |
| | 1,256,684 | Feb. 19, 1918 | G. Griesche | Stone Saw and Feeder |
| | 1,261,669 | Apr. 02, 1918 | W.E. Wright | Sawing Apparatus |
| | 2,073,079 | Mar. 09, 1937 | F.J. Theler, W. Peaslee, G.V. Johnston | Lapping Machine |
| | 2,097,730 | Nov. 02, 1937 | A.W. Mall | Terrazzo grinding apparatus |
 | 2,135,900 | Nov. 08, 1938 | H.W. Kulp | Grinding Tool |
