| All Patents in class 451/159 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 516,146 | Mar. 06, 1894 | C.A. Worden | Machine for sharpening razors, shears, &c. |
 | 1,032,758 | Jul. 16, 1912 | T. Lumsden | Tool and like grinding machine |
| | 1,754,139 | Apr. 08, 1930 | H.H. Asbridge | Grinding Machinery |
| | 2,352,146 | Jun. 20, 1944 | J. Desenberg | Grinding and Polishing Machine |
| | 2,578,884 | Dec. 18, 1951 | L.C. Hammond | Work holder for grinding router bits |
| | 2,922,258 | Jan. 26, 1960 | P.J. Robischung, L.C. Hammond, M.M. Bass, R.M. Bell | Grinder with oscillating head |
 | 2,958,164 | Nov. 01, 1960 | F.K. Beyer, B. William | Grinding machine |
| | 2,970,407 | Feb. 07, 1961 | J.H. Pasell | Drill point grinding machine |
| | 2,971,296 | Feb. 14, 1961 | R.M. Bell, M.M. Bass | Grinder with oscillating head |
| | 2,988,857 | Jun. 20, 1961 | R.M. Bell, M.M. Bass | Grinding machine |
