| Patents Granted on 1871-12-12 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| RE4,668 | Dec. 12, 1871 | W.A. Clark | Improvement in expansive bits | adjustable drill bits |
| 121,707 | Dec. 12, 1871 | W.A. Clark | Improvement in Hollow Augers | hollow bits |
| 121,850 | Dec. 12, 1871 | A.A. Cook | Divider | dividers |
| 121,856 | Dec. 12, 1871 | W.H. Dobson, W.H. Doane | Improvement in scroll-sawing machine | scrollsaws |
| 121,878 | Dec. 12, 1871 | B. Lawrence | Spindle lathe | wood lathes |
| 121,895 | Dec. 12, 1871 | R. Porter | Bench Vise | bench vises |
| 121,919 | Dec. 12, 1871 | G.A. Watkins | Improvement in preparing rattan for chair-seats, etc. | chair maker |
