| All Patents in class 451/377 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 205,416 | Jun. 25, 1878 | L.D. Dana, F.D. Randall | Improvement in Grinding-Machines | grinders |
| 354,690 | Dec. 21, 1886 | H. Cleary | Tool-holder for grindstones | bench or pedestal grinders |
| 425,781 | Apr. 15, 1890 | W.D. Graves, Jr. | Knife-grinding machine | sharpening machines |
| 523,908 | Jul. 31, 1894 | C.N. Sly | Machine for Sharpening Shears | |
| 535,021 | Mar. 05, 1895 | E. Rivett | Tool Holder and Rest Therefor | lathe tool holders and tool posts |
| 734,799 | Jul. 28, 1903 | J.S. Bancroft | Tool Grinding Machine | tool grinders |
| 1,185,219 | May 30, 1916 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
| 1,659,257 | Feb. 14, 1928 | F. Giampeter | Tool Holder | sharpening tool holders |
| 1,773,448 | Aug. 19, 1930 | C.E. Davidson | Tool Holder for Grindstones | sharpening tool holders |
| 2,432,058 | Dec. 02, 1947 | E.A. Reibig, C.A. Wiken | Surface grinder | |
| 3,181,283 | May 04, 1965 | P.B. Tuttle | Means for cutting chip breaker grooves | |
