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| All Patents in class 74/356 | |||||
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| Number | Date | Patentee | Title | Type | |
| 320,752 | Jun. 23, 1885 | E.M. Birdsall | Traction Engine | steam traction engines | |
| 638,359 | Dec. 05, 1899 | W.L. Schellenbach | Variable Speed Mechanism | metalworking variable speed mechanisms | |
| 667,406 | Feb. 05, 1901 | W.L. Schellenbach | Variable Speed Gearing | industrial machine gearing | |
| 704,645 | Jul. 15, 1902 | H.R. Isler | Differential Speed Mechanism | metal lathes | |
| 761,905 | Jun. 07, 1904 | J.C. Potter, J. Johnston, E.B. Sellew | Gearing | metal lathes | |