| All Patents in class 74/344 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 31,342 | Feb. 05, 1861 | J.S. Upton | Horse Power | animal powered apparatus |
| 533,997 | Feb. 12, 1895 | E.J. McClellan | Lathe | metal lathes |
| 541,385 | Jun. 18, 1895 | C.J. Paulson | Differential Gear Wheel | metal lathes |
| 621,158 | Mar. 14, 1899 | I. Sedgwick | Traction Engine | steam traction engines |
| 780,704 | Jan. 24, 1905 | N.D. Chard | Gearing for Headstocks for Lathes | metalworking machine mechanisms |
| 815,642 | Mar. 20, 1906 | W.T. Sears | Speed-changer | metalworking machine mechanisms |
| 834,063 | Oct. 23, 1906 | E.J. Kearney, T. Trecker | Means for lubricating machine-tools | milling machines |
| 837,969 | Dec. 11, 1906 | W.T. Sears | Speeder | metalworking machine mechanisms |
| 841,723 | Jan. 22, 1907 | W.T. Sears | Power-transmission device | metalworking machine mechanisms |
| 844,415 | Feb. 19, 1907 | W.T. Sears | Power-transmission device | metalworking machine mechanisms |
| 844,546 | Feb. 19, 1907 | W.T. Sears | Power-transmission device | metalworking machine mechanisms |
| 851,842 | Apr. 30, 1907 | W.T. Sears | Power-transmission device | metalworking machine mechanisms |
| 858,764 | Jul. 02, 1907 | W.T. Sears | Power-transmission apparatus | metalworking machine mechanisms |
| 943,621 | Dec. 14, 1909 | A.R. Murray, L.W. Anderson | Change Speed Gearing | metal shapers |
| 998,227 | Jul. 18, 1911 | J.S. Barnes | Variable Speed Gearing | metalworking speed changing mechanisms |
