| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1850-04-09 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 7,257 | Apr. 09, 1850 | D.H. Chamberlain | Divider or Compass | dividers | |
| 7,262 | Apr. 09, 1850 | J. Johnson | Woodworker's Leg Vise | leg vises | |
| 7,263 | Apr. 09, 1850 | W.G. Ladd, Jr. | Fluid Level | inclinometers | |
| 7,264 | Apr. 09, 1850 | S. Lewis | Machine for cutting screws on the rails of bedsteads | wood threading machines | |
| 7,278 | Apr. 09, 1850 | M. Wilder | Mill Shaft Spindle | industrial machine shaft couplings | |