| All Patents in class 74/333 |
Patents 1 -
15
of 191
      |
| Number | Date | Patentee | Title | Type |
| 134,237 | Dec. 24, 1872 | C.H. Amidon | Improvement in drills | eggbeater drills |
| 246,710 | Sep. 06, 1881 | G.W. Bean | Back-gear clutch for upright drills | industrial machine clutches |
| 314,433 | Mar. 24, 1885 | E.S. Cobb | Lathe | metal lathe mechanisms |
| 321,196 | Jun. 30, 1885 | U. Eberhardt, H.E. Eberhardt | Drilling-Machine | drill presses |
| 341,207 | May 04, 1886 | J.R. Back | Metal-turning lathe | metal lathes |
| 375,032 | Dec. 20, 1887 | C.H. Weston | Lock for Lathe Head Stocks | metal lathes |
| 379,313 | Mar. 13, 1888 | W.S. Rogers, W.C. Jones | Lathe | engine lathes |
| 407,339 | Jul. 23, 1889 | H.E. Eberhardt, U. Eberhardt | Drilling Machine | drill presses |
| 427,325 | May 06, 1890 | J.E. Hitch, F. Mill, C.H. Irwin | Boring-machine | portable timber mortisers |
| 458,423 | Aug. 25, 1891 | M.C. Johnson | Lathe Head | metal lathes |
| 502,131 | Jul. 25, 1893 | E.J. McClellan | Feed Motion | metalworking power transmission |
| 572,709 | Dec. 08, 1896 | E.J. McClellan | Lathe | engine lathes |
| 612,466 | Oct. 18, 1898 | C.C. Tyler, C.L. Grohmann | Milling-machine | milling machines |
| 624,017 | May 02, 1899 | F.G. Hampson | Change Driving Gear | metalworking speed changing mechanisms |
| 662,710 | Nov. 27, 1900 | C.C. Cleverdon | Speed Changing Mechanism | metalworking speed changing mechanisms |
