| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 91/332 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 114,010 | Apr. 25, 1871 | B. Holly | Variable Cut Off | steam valves | |
| 451,720 | May 05, 1891 | H. Bolthoff | Steam-engine | steam engine valves | |
| 2,230,263 | Feb. 04, 1941 | E.C. Read | Governor | steam engine governors | |
| 2,258,688 | Oct. 14, 1941 | E.C. Read | Governor | steam engine governors | |
| 2,604,071 | Jul. 22, 1952 | P.A. Rickrode | Drop hammer of the gravity type | drop hammers | |