| All Patents in class 451/436 |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 499,905 | Jun. 20, 1893 | W.B. Cannon | Grinding Attachment for Lathes | metal lathe accessories and attachments |
| 533,302 | Jan. 29, 1895 | W. Lawson | Taper-boring or Grinding Attachment for Lathes | metal lathe accessories and attachments |
| 603,400 | May 03, 1898 | A.J. Farmer | Lathe Attachment | metal lathe accessories and attachments |
| 638,431 | Dec. 05, 1899 | E. Werner | Grinding Machine | lathe center grinders |
| 680,845 | Aug. 20, 1901 | H. Dock | Center Grinder Attachment for Lathes | metal lathe accessories and attachments |
| 684,236 | Oct. 08, 1901 | J.N. Heald | Center Grinding Attachment for Lathes | metal lathe accessories and attachments |
| 710,807 | 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 |
| 774,030 | Nov. 01, 1904 | L.B. Benton | Grinding Machine | tool grinders |
| 1,196,165 | Aug. 29, 1916 | E.F. Smith | Center-grinder | metal lathe accessories and attachments |
