| Patents Granted on 1877-02-20 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 187,471 | Feb. 20, 1877 | J.S. Loomis | Improvement in molding machines | molders |
| 187,472 | Feb. 20, 1877 | J.S. Loomis | Improvement in sectional pressure-bars for planing and molding machines | wood planers |
| 187,497 | Feb. 20, 1877 | S. Wheeler | Improvement in barrel-heads | cooper |
| 187,513 | Feb. 20, 1877 | E.E. Colby | Improvement in bridges | bridges |
| 187,558 | Feb. 20, 1877 | G.M. Rathbun | Workbench | workbenches |
| 187,593 | Feb. 20, 1877 | A.A. Sanborn, I.P. Brown, Jr. | Emery Grinding Wheels | grinder wheels |
| 187,600 | Feb. 20, 1877 | G. Collins | Combination Countersink, Screwdriver & Gimlet Bit | countersinks |
| 187,622 | Feb. 20, 1877 | C.M. Hall | Improvement in set-works for circular-saw mills | sawmill set works |
