| All Patents in class 74/341 |
Patents 1 -
15
of 28
      |
| Number | Date | Patentee | Title | Type |
| 296,491 | Apr. 08, 1884 | J.B. West | Differential gear | metal lathes |
| 307,265 | Oct. 28, 1884 | A.P. Broomell | Traction Engine | steam traction engines |
| 338,916 | Mar. 30, 1886 | J. Bevier | Speed Regulating Device | industrial machine speed and direction changing mechanisms |
| 592,966 | Nov. 02, 1897 | H.L. Flather | Feed Mechanism for Engine Lathes | metalworking machine mechanisms |
| 615,146 | Nov. 29, 1898 | W. Donaldson | Lathe | |
| 643,191 | Feb. 13, 1900 | W. Lodge | Speed Changing Gear for Engine Lathes | engine lathes |
| 706,049 | Aug. 05, 1902 | F.W. Gordon, B.M. Hanson | Variable Speed Device | engine lathes |
| 706,186 | Aug. 05, 1902 | R.K. Le Blond | Variable Speed Mechanism | metal lathes |
| 712,279 | Oct. 28, 1902 | W.T. Emmes | Speed-changing device | metalworking machine gearing |
| 727,977 | May 12, 1903 | W.F. Groene, R.K. Blond | Speed-changing box | metal lathes |
| 728,279 | May 19, 1903 | A.E. Newton | Change Gearing for Lathes | industrial machine gearing |
| 768,608 | Aug. 30, 1904 | W.F. Groene, R.K. Le Blond | Feed and Speed Changing Device for Machine-tools | metal lathe mechanisms |
| 788,657 | May 02, 1905 | W.F. Groene, R.K. Le Blond | Feed and Speed Changing Device | metal lathe mechanisms |
| 794,464 | Jul. 11, 1905 | J. Parker | Variable-speed mechanism | milling machines |
| 807,014 | Dec. 12, 1905 | L.S. Burbank | Speed-changing mechanism for metal-working machines | metal lathes |
