| All Patents in class 451/374 |
Patents 16 -
30
of 74
      |
| Number | Date | Patentee | Title | Type |
| 614,247 | Nov. 15, 1898 | H. Goldsmith, E.T. Goodhew | Grinding Machine | tool grinders |
| 665,303 | Jan. 01, 1901 | J. Bath | Tool or Cutter Holder for Grinding Machines | tool grinders |
| 667,321 | Feb. 05, 1901 | M.L. Keyes | Edge Tool Grinder | sharpening machines |
| 705,226 | Jul. 22, 1902 | J. Ettinger | Grinding-machine | cutter grinding machines |
| 710,808 | Oct. 07, 1902 | R.M. Russell | Grinding attachment for lathes | metal lathe accessories and attachments |
| 712,537 | Nov. 04, 1902 | C.S. Hisey | Electric grinding device | handheld power tools |
| 714,894 | Dec. 02, 1902 | B.M. Hanson | Relieving Attachment for Lathes | metal relieving attachments |
| 717,605 | Jan. 06, 1903 | W. Oesterlein | Cutter and tool grinder | tool grinders |
| 736,573 | Aug. 18, 1903 | J. Bath | Tool Holder for Grinding Machines | tool grinders |
| 774,030 | Nov. 01, 1904 | L.B. Benton | Grinding Machine | tool grinders |
| 856,662 | Jun. 11, 1907 | G.W. Smith | Face-mill grinder | tool grinders |
| 870,759 | Nov. 12, 1907 | H. Baerbalck | Relieving Mechanism for Engine Lathes | metal relieving attachments |
| 945,463 | Jan. 04, 1910 | A.B. Landis | Machine for grinding cutters and reamers | grinders |
| 986,688 | Mar. 14, 1911 | P. Catucci | Hob-grinding machine | hob grinding machines |
| 1,052,605 | Feb. 11, 1913 | S. MacKay | Grinding Machine | sharpening machines |
