| Patents Granted on 1871-02-28 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| RE4,279 | Feb. 28, 1871 | P. Estes | Improvement in Steam Engines | steam engines |
| 112,108 | Feb. 28, 1871 | E. Beach | Wrench | quick adjust wrenches |
| 112,109 | Feb. 28, 1871 | E. Beach | Wrench | quick adjust wrenches |
| 112,114 | Feb. 28, 1871 | N.H. Bolton | Machine for sawing waste-blocks from shingle machine into shingles | shingle machines |
| 112,115 | Feb. 28, 1871 | T.V. Boyden | Twist Drill Bit | twist drill bits |
| 112,119 | Feb. 28, 1871 | G.O. Buckley | Self Centering Lathe Chuck | metal lathe chucks |
| 112,135 | Feb. 28, 1871 | G.W. Fitts | Traction Engine | steam traction engines |
| 112,143 | Feb. 28, 1871 | H.L. Hildreth | Improvement in Screw Drivers | ratcheting screwdrivers |
| 112,156 | Feb. 28, 1871 | G.W. Lombard | Improvement in sawing-machines | annular saws |
| 112,176 | Feb. 28, 1871 | F.H. Palmer | Improvement in countersinks | countersinks |
| 112,205 | Feb. 28, 1871 | M.P. Jacobs, V. Applegate, S.F. Roby | Improvement in Coopers' Croze | crozes |
| 112,218 | Feb. 28, 1871 | W. Brown, J.R. Brown | Improvement in Carpenters' Planes | |
| 112,227 | Feb. 28, 1871 | H. Disston | Improvement in saws | saw teeth |
| 112,228 | Feb. 28, 1871 | W.H. Soley, W. Downing | Chain mortising machine | mortising machines |
| 112,238 | Feb. 28, 1871 | E.B. Gifford | Improvement in Wrenches and Oilers | axle nut wrench combination tools |
