| All Patents in class 451/15 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
| | 396,077 | Jan. 15, 1889 | J. Flather | Machine for Grinding and Turning Tapers |
| | 1,575,558 | Mar. 02, 1926 | W.D. Archea, L.F. Nenninger, S. Einstein | Centreless Grinding Machine |
 | 1,612,830 | Jan. 04, 1927 | C.G. Olson | Grinding machine |
| | 1,665,160 | Apr. 03, 1928 | S. Einstein, F.S. Haas, W. Peaslee | Automatic Size-Grinding Machine |
 | 1,949,516 | Mar. 06, 1934 | C.H. Norton | Hydraulic wheel feeding mechanism |
| | 1,991,799 | Feb. 19, 1935 | C. Booth, S. Einstein | Grinding Machine |
| | 2,141,853 | Dec. 27, 1938 | C.E. Brown | Grinding Machine |
| | 2,254,002 | Aug. 26, 1941 | H. Ernst, J. Decker | Grinding Machine |
| | 2,325,678 | Aug. 03, 1943 | M.P. Holmes | Backlash Take-up for Cross Feed Screw and Taper Attachments |
| | 2,334,581 | Nov. 16, 1943 | R.S. Pyne | Cross-feed for grinding machines |
