| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1850-04-30 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 7,322 | Apr. 30, 1850 | H. Elliott | Gearing for Regulating Speed | industrial machine speed and direction changing mechanisms | |
| 7,325 | Apr. 30, 1850 | S.E. Parsons, E.H. Parsons | Hanging saws in sawmills | sawmills | |
| 7,326 | Apr. 30, 1850 | S. Peck | Daguerreotype-Plate Holder | ||
| 7,329 | Apr. 30, 1850 | E. Brecht, W.H. Trissler | Roasting Coffee | coffee roasters | |
| 7,331 | Apr. 30, 1850 | B.M. Van Der Veer | Board and Log Rule | lumber rules | |