| All Patents in class 451/449 |
Patents 1 -
10
of 32
      |
| Picture | Number | Date | Patentee | Title |
 | 29,680 | Aug. 21, 1860 | H. Disston | Machine for grinding saw-blades |
 | 233,488 | Oct. 19, 1880 | S. Darling | Art of Manufacturing Mathematical Instruments |
| | 354,498 | Dec. 14, 1886 | P. Van Den Kerchove | Device for Cooling Machine Tools |
| | 405,706 | Jun. 25, 1889 | E.R. Hyde | Surface Grinding or Planing Machine |
| | 411,729 | Sep. 24, 1889 | W.J. Perkins | Saw-grinding machine |
 | 487,140 | Nov. 29, 1892 | C.A. Worden | Machine for sharpening razors |
 | 544,439 | Aug. 13, 1895 | A.B. Landis | Grinding-machine |
 | 945,463 | Jan. 04, 1910 | A.B. Landis | Machine for grinding cutters and reamers |
| | 986,688 | Mar. 14, 1911 | P. Catucci | Hob-grinding machine |
 | 995,256 | Jun. 13, 1911 | E.J. Kearney, T. Trecker | Milling-machine |
