| All Patents in class 451/218 |
Patents 1 -
10
of 45
      |
| Picture | Number | Date | Patentee | Title |
 | 27,221 | Feb. 21, 1860 | C.W. Hubbard | Machine for grinding and polishing saws |
 | 256,440 | Apr. 11, 1882 | P. Medart | Machine for grinding pulleys |
| | 434,115 | Aug. 12, 1890 | C.H. Norton | Grinding Machine |
 | 696,034 | Mar. 25, 1902 | C.R. Gabriel | Grinding-machine |
 | 945,453 | Jan. 04, 1910 | B.M. Hanson | Mechanism for actuating cross-slides |
 | 945,463 | Jan. 04, 1910 | A.B. Landis | Machine for grinding cutters and reamers |
 | 956,208 | Apr. 26, 1910 | E.F. Smith | Grinding-machine |
| | 1,535,452 | Apr. 28, 1925 | P. Conradson | Grinding Machine |
| | 1,575,520 | Mar. 02, 1926 | W.D. Archea | Work Carrying Device for Grinding Machines |
| | 1,609,643 | Dec. 07, 1926 | L. Daly | Grinding Machine |
