| All Patents in class 451/64 |
Patents 1 -
10
of 29
      |
| Picture | Number | Date | Patentee | Title |
 | 16,223 | Dec. 16, 1856 | E. Andrews | Improved machine for grinding saws |
 | 657,357 | Sep. 04, 1900 | J.L. Perry | Sandpapering-machine |
| | 797,216 | Aug. 15, 1905 | J.J. Thacher, E.H. Parks | Grinding-Machine |
 | 983,975 | Feb. 14, 1911 | W.L. Bryant | Multispindle grinding-machine |
 | 1,026,389 | May 14, 1912 | E.J. McClellan, G.K. Garvin | Hole Grinding Machine |
 | 1,445,875 | Feb. 20, 1923 | R.W. Ellingham, C.E. Van Norman | Grinding machine |
| | 1,662,821 | Mar. 20, 1928 | S. Einstein | Internal Grinder |
| | 1,695,759 | Dec. 18, 1928 | P. Conradson | Grinding Machine |
 | 1,779,823 | Oct. 28, 1930 | C.H. Norton | Automatic Cylindrical grinding machine |
| | 1,881,984 | Oct. 11, 1932 | C.E. Van Norman | Slide Mechanism for Precision Grinding Machines |
