| All Patents in class 76/40 |
Patents 1 -
15
of 51
      |
| Number | Date | Patentee | Title | Type |
| 63,407 | Apr. 02, 1867 | T.T. Markland, Jr. | Improvement in machines for sharpening saws | saw gummers |
| 79,787 | Jul. 07, 1868 | O.A. Tefft | Improvement in sharpening saws | saw sharpening machines |
| 89,724 | May 04, 1869 | W.P. Welch, J.H. Harrison, E.L. Abbott | Improvement in machine for grinding saws | saw sharpening machines |
| 90,010 | May 11, 1869 | T.T. Markland, Jr. | Improvement in saw-sharpening device | saw sharpening machines |
| 105,244 | Jul. 12, 1870 | H.J. Perkins | Improvement in machine for sharpening the teeth of saws | saw sharpening machines |
| 105,543 | Jul. 19, 1870 | J.A. Borthwick | Improvement in Machine for Sharpening Saws | annular saws |
| 120,700 | Nov. 07, 1871 | N.H. Bolton | Improvement in machines for sharpening saws | woodworking machine sharpening mechanisms |
| 134,425 | Dec. 31, 1872 | F.E. Frey | Flexible Saw Filing Apparatus | saw sharpening machines |
| 164,470 | Jun. 15, 1875 | J.A. Miller | Improvement in saw-sharpening machines | saw sharpening machines |
| 179,500 | Jul. 04, 1876 | E. Andrews | Improvement in saw-sharpening machines | saw sharpening machines |
| 181,795 | Sep. 05, 1876 | J. McSweeny | Saw gumming and sharpening machine | saw sharpening machines |
| 191,212 | May 22, 1877 | S. Whitesides | Improvement in saw sharpening and setting machines | saw sharpening machines |
| 201,416 | Mar. 19, 1878 | T. Hodgson | Improvement in saw-sharpening machines | saw sharpening machines |
| 207,919 | Sep. 10, 1878 | W.H. Walsh | Gin Saw Sharpener | saw sharpening machines |
| 214,002 | Apr. 08, 1879 | E.W. Phelps | Saw Sharpening Machine | saw sharpening machines |
