| All Patents in class 451/214 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
 | 188,126 | Mar. 06, 1877 | P.M. Haas | Improvement in machines for making balusters |
 | 359,943 | Mar. 22, 1887 | G.H. Smith | Attachment for Grinding Machines |
 | 363,000 | May 17, 1887 | E. Rivett | Watch-maker's lathe |
| | 384,613 | Jun. 19, 1888 | C.S. Farrar | Machine for sharpening saws, &c. |
| | 614,247 | Nov. 15, 1898 | H. Goldsmith, E.T. Goodhew | Grinding Machine |
| | 667,512 | Feb. 05, 1901 | C.H. Field | Gear Cutting Engine |
| | 1,255,962 | Feb. 12, 1918 | E.D. Paul, C.C. Warner | Grinding Machine |
| | 1,750,956 | Mar. 18, 1930 | R.E. Flanders | Machine for Grinding Chasers |
 | 2,276,625 | Mar. 17, 1942 | H.F. Patrick | Surface grinder |
 | 2,296,731 | Sep. 22, 1942 | R.H. Mustonen | Stop mechanism for grinding machines |
