All Patents in class 29/90.01 |
Patents 1 -
10
of 31
      |
Picture | Number | Date | Patentee | Title |
 | 6,470 | May 22, 1849 | W.H. Seymour | Machine for jointing staves |
 | 22,452 | Dec. 28, 1858 | J.S. Ray | Improved Burnishing Attactment for Lathes |
 | 51,563 | Dec. 19, 1865 | J. Critchley | Pipe Expander |
 | 64,954 | May 21, 1867 | H. Disston | Improved Process of Treating Steel Blades |
 | 140,390 | Jul. 01, 1873 | L.W. Stuart | Improvement in Process of Hardening Edge Tools |
| 147,536 | Feb. 17, 1874 | B.D. Whitney | Improvement in sharpening-machines |
 | 149,020 | Mar. 24, 1874 | A. Wood | Metal Shaft Turning Lathes |
 | 231,259 | Aug. 17, 1880 | B. Beehler | Sanding machine |
| 264,423 | Sep. 12, 1882 | N.S. Valentine | Burnishing Machine |
| 333,761 | Jan. 05, 1886 | I. Lawson | Knife Cleaner |