| Patents Granted on 1872-02-20 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| RE4,763 | Feb. 20, 1872 | J.P. Grosvenor | Improvement in circular-saw mills | tablesaws |
| RE4,764 | Feb. 20, 1872 | D. Lane | Improvement in head-blocks for saw-mills | sawmill headblocks |
| 123,758 | Feb. 20, 1872 | A. Adams | Improvement in Corn Shellers | miller |
| 123,774 | Feb. 20, 1872 | L.R. Faught | Improvement in horse-powers | animal powered apparatus |
| 123,790 | Feb. 20, 1872 | S. Noble, J.P. Cooley | Improvement in toothpick machines | toothpick making machines |
| 123,791 | Feb. 20, 1872 | C. Paxton, W.H. Hull | Improvement in Leveling Jacks for Billiard Tables | wrenches |
| 123,793 | Feb. 20, 1872 | D. Renshaw | Improvement in Sectional Boilers | stationary boilers |
| 123,800 | Feb. 20, 1872 | A. van Vleck | Improvement in cutter-heads | cutterheads |
| 123,849 | Feb. 20, 1872 | A. Weed | Improvement in machines for cutting files | file cutting machines |
| 123,863 | Feb. 20, 1872 | G.O. Buckley | Improvement in Self Centering Chucks for Lathes | metal lathe chucks |
| 123,872 | Feb. 20, 1872 | T.L. Baylies, E. Crawley | Bench Vise | bench vises |
| 123,886 | Feb. 20, 1872 | W. Gardam, J. Gardam | Improvement in drilling-machines | drilling and boring |
| 123,888 | Feb. 20, 1872 | J.D. Gernez | Improvement in Sand Paper Holders | |
| 123,951 | Feb. 20, 1872 | L.W. Stockwell | Improvement in Screw Cutting Machines | screw machines |
