| All Patents in class 451/393 |
Patents 1 -
15
of 55
      |
| Number | Date | Patentee | Title | Type |
| 81,608 | Sep. 01, 1868 | J.P. Curtiss | Machine for Grinding Metal Articles | grinders |
| 87,212 | Feb. 23, 1869 | J.D. Smith | Improvement in Machines for Grinding Edge Tools | tool grinders |
| 199,166 | Jan. 15, 1878 | C.G. Purdy | Improvement in Machines for Polishing Moldings | sanding machines |
| 204,394 | May 28, 1878 | M. Taplin | Improvement in saw-mill carriages | sawmill carriages |
| 206,424 | Jul. 30, 1878 | O.R. Chapman | Metal-Planing Machine | metal planers |
| 350,554 | Oct. 12, 1886 | F. Phillips | Planing-Machine Cushioning Device | metal planers |
| 374,908 | Dec. 13, 1887 | J.S. Bancroft, W. Sellers | Planing Machine for Metals | metal planers |
| 379,163 | Mar. 06, 1888 | A.E. Hoffman | Feed mechanism for saw-mill carriages | sawmill feed works |
| 399,762 | Mar. 19, 1889 | L. Malchow | Reciprocating table for holding moldings to be polished | sanding machines |
| 405,706 | Jun. 25, 1889 | E.R. Hyde | Surface Grinding or Planing Machine | surface grinders |
| 425,781 | Apr. 15, 1890 | W.D. Graves, Jr. | Knife-grinding machine | sharpening machines |
| 502,401 | Aug. 01, 1893 | M.P. Hodge | Taper Attachment for Lathes | metal lathe accessories and attachments |
| 550,439 | Nov. 26, 1895 | E. Childs | Lathe | automatic lathes |
| 554,423 | Feb. 11, 1896 | F. Holz | Milling Machine | milling machines |
| 570,093 | Oct. 27, 1896 | H. Hess | Metal Planing Machine | metalworking machine mechanisms |
