| All Patents in class 451/15 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 396,077 | Jan. 15, 1889 | J. Flather | Machine for Grinding and Turning Tapers | metal lathes |
| 1,575,558 | Mar. 02, 1926 | W.D. Archea, L.F. Nenninger, S. Einstein | Centreless Grinding Machine | centerless grinders |
| 1,612,830 | Jan. 04, 1927 | C.G. Olson | Grinding machine | gear hobbing machines |
| 1,665,160 | Apr. 03, 1928 | F.S. Haas, W. Peaslee, S. Einstein | Automatic Size-Grinding Machine | grinding machines |
| 1,949,516 | Mar. 06, 1934 | C.H. Norton | Hydraulic wheel feeding mechanism | grinders |
| 1,991,799 | Feb. 19, 1935 | C. Booth, S. Einstein | Grinding Machine | grinding machines |
| 2,141,853 | Dec. 27, 1938 | C.E. Brown | Grinding Machine | grinding machines |
| 2,254,002 | Aug. 26, 1941 | H. Ernst, J. Decker | Grinding Machine | grinding machines |
| 2,325,678 | Aug. 03, 1943 | M.P. Holmes | Backlash Take-up for Cross Feed Screw and Taper Attachments | metal lathe accessories and attachments |
| 2,334,581 | Nov. 16, 1943 | R.S. Pyne | Cross-feed for grinding machines | cylindrical grinders |
| 2,392,819 | Jan. 15, 1946 | S.G. Brady, I.J. Gruenberg | Gear Grinding Machine | gear grinding machines |
| 2,585,533 | Feb. 12, 1952 | W.J. Bryant, T.H. Ljunggren, W.F. Moore | Internal grinding machine with automatic air gauge sizing | cylindrical grinders |
| 2,709,877 | Jun. 07, 1955 | A.H. Dall, G.L. Grove | Automatic Infeed Mechanism for Centerless Grinders | metalworking machine mechanisms |
| 2,915,857 | Dec. 08, 1959 | L.C. Hammond | Elevating and traversing mechanism for a grinding machine | |
