| All Patents in class 74/325 |
Patents 1 -
15
of 25
      |
| Number | Date | Patentee | Title | Type |
| 525,863 | Sep. 11, 1894 | S.W. Putnam | Metal Turning Lathe | engine lathes |
| 635,013 | Oct. 17, 1899 | J. Flather | Swinging Shelf for Gears | metal lathe accessories and attachments |
| 698,008 | Apr. 22, 1902 | F.W. Gordon | Change Gearing | engine lathes |
| 1,167,887 | Jan. 11, 1916 | F.F. Clarke | Drill-press | drill presses |
| 1,659,437 | Feb. 14, 1928 | G.E. Merryweather | Double Take-Off Gear | metalworking power transmission |
| 1,961,524 | Jun. 05, 1934 | L.F. Nenninger | Milling Machine | milling machines |
| 1,971,956 | Aug. 28, 1934 | W.G. Hoelscher | Lathe | metal lathes |
| 1,982,612 | Nov. 27, 1934 | W.G. Hoelscher | Feed box transmission | metal lathes |
| 2,002,816 | May 28, 1935 | H.R. Isler | Machine Tool Drive | indexers and dividers |
| 2,022,436 | Nov. 26, 1935 | L.L. Schauer, A.M. Sosa | Convertible upright drill | drill presses |
| 2,025,902 | Dec. 31, 1935 | E.G. Roehm | Milling Machine Transmission and Control Mechanism | milling machines |
| 2,068,840 | Jan. 26, 1937 | A.L. Krause, A.F. Bennett | Milling Machine | milling machines |
| 2,075,240 | Mar. 30, 1937 | H.E. Tautz | Speed change mechanism for screw machines | |
| 2,183,514 | Dec. 12, 1939 | A.G. Ericson, B.R. Granberg | Gearing | metalworking machine gearing |
| 2,237,466 | Apr. 08, 1941 | W.F. Zimmermann | Support for Ajustable Change Gear Studs | metalworking speed changing mechanisms |
