| All Patents in class 74/568R |
Patents 1 -
15
of 34
      |
| Number | Date | Patentee | Title | Type |
| 8,114X | Mar. 28, 1834 | Z. Allen | Mode of operating steam engines | steam engines |
| 21,399 | Aug. 31, 1858 | J. Widmer | Cut-Off for Steam-Engines | steam engine valve gear |
| 264,859 | Sep. 26, 1882 | J.C. Butterfield | Atmospheric hammer | drop hammers |
| 359,133 | Mar. 08, 1887 | M. Covel | Saw-sharpening machine | saw sharpening machines |
| 469,201 | Feb. 16, 1892 | J.B. Clyne | Machine for Making Screws | screw machines |
| 525,358 | Sep. 04, 1894 | F.C. Olin | Gas Engine | gas and gasoline engines |
| 593,066 | Nov. 02, 1897 | G.H. Ball, D.E. Sweetser, C.P. Ball | Automatic Lathe | automatic lathes |
| 671,568 | Apr. 09, 1901 | G. Sittmann | Screw-machine | screw machines |
| 672,398 | Apr. 16, 1901 | J. Hartness | Lathe | automatic lathes |
| 867,724 | Oct. 08, 1907 | J.P. Hedstrom | Adjustable cam | saw sharpening machines |
| 942,843 | Dec. 07, 1909 | J.C. Potter, J. Johnston | Gearing | turret lathes |
| 1,551,054 | Aug. 25, 1925 | J.F. Pribnow | Saw-grinding machine | saw sharpening machines |
| 1,600,650 | Sep. 21, 1926 | F.B. Cockburn, E.S. Bird | Lathe | automatic lathes |
| 1,742,843 | Jan. 07, 1930 | F.K. Benedict | Multiple cam | saw sharpening machines |
| 1,938,781 | Dec. 12, 1933 | B. Sassen, L.F. Nenninger | Milling Machine | milling machines |
