| Patents Granted on 1851-09-?? |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| AI98 | Sep. 02, 1851 | F. Pfanner | Dyestuffs from spent madder | |
| 8,330 | Sep. 02, 1851 | T.M. Chapman | Saw-filing machine | saw sharpening machines |
| 8,355 | Sep. 09, 1851 | C.R. Hurlbut | Gage used in turning | wood lathes |
| 8,367 | Sep. 16, 1851 | N.F. Cone | Woodworker's Leg Vise | leg vises |
| 8,376 | Sep. 23, 1851 | W. Merrell | Lath-machine | lath making machines |
| 8,393 | Sep. 30, 1851 | G.F. Woolston | Saw for sawing and smoothing boards | sawblades |
| 8,400 | Sep. 30, 1851 | E. Whiten | Machine for sawing volutes | scrollsaws |
| 8,401 | Sep. 30, 1851 | M. Spear | Miter-box | miter boxes |
