| All Patents in class 474/133 |
Patents 1 -
10
of 22
      |
| Picture | Number | Date | Patentee | Title |
 | 123,886 | Feb. 20, 1872 | W. Gardam, J. Gardam | Improvement in drilling-machines |
 | 187,870 | Feb. 27, 1877 | M. Lally | Improvement in methods of operating saw-mill carriages |
 | 278,064 | May 22, 1883 | J. Walrath | Saw-mill |
 | 284,703 | Sep. 11, 1883 | G.H. Zschech | Belt-tightener |
| | 325,558 | Sep. 01, 1885 | A. Miller | Belt-tightener |
 | 355,146 | Dec. 28, 1886 | M. Deering | Power-hammer |
| | 466,790 | Jan. 12, 1892 | W.R. Jenkins | Power Hammer |
 | 622,329 | Apr. 04, 1899 | F.H. Crafts | Speed Changing Driving Mechanism for Lathes |
 | 650,131 | May 22, 1900 | B.G. Luther | Belt-tightener |
| | 741,042 | Oct. 13, 1903 | H.C. Clay, J.N. Kailor | Quick Release Belt Tightener |
