| All Patents in class 474/112 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 306,560 | Oct. 14, 1884 | F. Van De Water | Belt-tightener | industrial machine pulleys and belt drive mechanisms |
| 586,293 | Jul. 13, 1897 | J.E. Smith | Speed Changing Mechanism for Lathes, Drills or Similar Machines | metalworking variable speed mechanisms |
| 1,160,650 | Nov. 16, 1915 | J.C. Prims | Coffee-roaster | coffee roasters |
| 1,575,307 | Mar. 02, 1926 | A.B. Bachmann | Flexible-shaft bench grinder | flexible shafts |
| 2,681,533 | Jun. 22, 1954 | F.C. Logeman | Grinding Machine Headstock | cylindrical grinders |
| 2,956,595 | Oct. 18, 1960 | J. Kmetz, R.K. Holtz, E.C. Warrick | Drive means for combination circular saw and jointer | combination machines |
