| All Patents in class 451/249 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 235,022 | Nov. 30, 1880 | J.T. Ridgway | Automatic Attachments to Lathes Cutting Rubber and Other Rings | metal lathe accessories and attachments |
| 764,109 | Jul. 05, 1904 | N.D. Chard | Automatic stop for lathe-carriages | metal lathes |
| 945,979 | Jan. 11, 1910 | H.N. Cudworth, J.C. Spence, C.H. Norton | Machine for grinding crankshafts | grinders |
| 1,017,879 | Feb. 20, 1912 | A.B. Landis | Grinding-machine | grinders |
| 1,299,208 | Apr. 01, 1919 | F. Müller | Relieving Lathe | metal relieving machines |
| 1,304,799 | May 27, 1919 | C.H. Norton | Double-head grinding machine | cylindrical grinders |
| 1,597,748 | Aug. 31, 1926 | W.M. Whitney | Wood Shaping Machine | wood shapers |
| 1,932,969 | Oct. 31, 1933 | J.E. Caster, C.W. Hopkins | Grinding Machine | grinding machines |
| 1,938,767 | Dec. 12, 1933 | B.A. Kearns | Grinding Machine | cylindrical grinders |
| 1,949,516 | Mar. 06, 1934 | C.H. Norton | Hydraulic wheel feeding mechanism | grinders |
| 1,952,423 | Mar. 27, 1934 | H. Ernst, A.H. Dall | Grinding Machine | grinding machines |
| 2,010,347 | Aug. 06, 1935 | J.E. Caster | Grinding Machine | grinding machines |
| 2,010,375 | Aug. 06, 1935 | A.G. Plimmer | Grinding Machine | grinding machines |
| 2,232,228 | Feb. 18, 1941 | W.L. Groene | Crankpin grinder | crank pin lathes |
| 2,484,887 | Oct. 18, 1949 | L.E. Mehlhope, E.J. Riveira, W.A. Hoier | Crankshaft Grinder | crankshaft grinders |
