| All Patents in class 451/436 |
Patents 1 -
15
of 25
      |
| Number | Date | Patentee | Title | Type |
| 12,502 | Mar. 13, 1855 | J.M. Bottum | Polishing Apparatus for Watchmakers' Lathes | watchmakers lathes |
| 68,698 | Sep. 10, 1867 | A.B. Lawther, C. Coester, Jr. | Edge Tool Grinder | tool grinders |
| 126,160 | Apr. 30, 1872 | D. Slate | Improvement in tool for grinding lathe-centers | tool making machines |
| 134,287 | Dec. 24, 1872 | W.S. Jarboe | Apparatus for Grinding Lathe Centers | metal lathe accessories and attachments |
| 140,832 | Jul. 15, 1873 | J. Rigney, J.P. Kealy | Machine for dressing lathe centers | sharpening machines |
| 160,921 | Mar. 16, 1875 | M.R. Lemman | Machine for Grinding Lathe Centers | metal lathe accessories and attachments |
| 292,227 | Jan. 22, 1884 | D. Houghton | Lathe Center Grinding Machine | grinding attachments |
| 349,602 | Sep. 21, 1886 | A.H. Randall | Lathe Center Grinding Machine | metal lathe accessories and attachments |
| 384,795 | Jun. 19, 1888 | F.A. Shoemaker | Grinding Machine | metal lathe accessories and attachments |
| 394,786 | Dec. 18, 1888 | T.W. McCabe | Apparatus for Grinding Lathe Centers | grinding attachments |
| 438,876 | Oct. 21, 1890 | E.E. Woodward | Lathe Center Grinder | metal lathe accessories and attachments |
| 447,553 | Mar. 03, 1891 | W. Barker | Machine for Grinding Lathe Centers | lathe center grinders |
| 457,389 | Aug. 11, 1891 | J. Weber | Center Grinder for Lathes | metal lathe accessories and attachments |
| 477,911 | Jun. 28, 1892 | O.W. Mueller, G.A. Mueller | Grinding Attachment for Lathes | metal lathe accessories and attachments |
| 496,891 | May 09, 1893 | C.H. Norton | Center Grinder | metal lathe accessories and attachments |
