| All Patents in class 451/26 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
| | 2,033,335 | Mar. 10, 1936 | B.A. Kearns, F.S. Haas | Grinding Machine |
| | 2,142,028 | Dec. 27, 1938 | C. Herfurth | Grinding Machine |
| | 2,164,875 | Jul. 04, 1939 | C. Herfurth | Grinding Machine |
| | 2,367,759 | Jan. 23, 1945 | A.D. Stuckey, J. Decker | Grinding Machine |
| | 2,376,237 | May 15, 1945 | A.D. Stuckey, J. Decker | Grinding Machine |
| | 2,478,562 | Aug. 09, 1949 | F.S. Haas, G.W. Binns | Grinding Machine |
| | 2,491,398 | Dec. 13, 1949 | W.L. Tancred | Contouring Machine |
| | 2,505,223 | Apr. 25, 1950 | F.R. Whitcomb | Glazing and polishing machine |
| | 2,802,312 | Aug. 13, 1957 | G.L. Grove, E. Gosney, Jr. | Grinding Machine |
| | 3,018,590 | Jan. 30, 1962 | B.H. Steinhard, J. Decker | Grinding Machine Feed Mechanism |
