| Patents Granted on 1881-10-25 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 248,587 | Oct. 25, 1881 | W. Gray | Device for Throwing Belts Onto or Off From Revolving Pulleys | belt shifters |
| 248,588 | Oct. 25, 1881 | J.P. Haigh | Pipe-Wrench or Cylinder-Wrench | pipe wrenches |
| 248,598 | Oct. 25, 1881 | P. Medart | Belt Pulley | industrial machine pulleys and belt drive mechanisms |
| 248,599 | Oct. 25, 1881 | P. Medart | Manufacture of Belt Pulleys | industrial machine pulleys and belt drive mechanisms |
| 248,612 | Oct. 25, 1881 | H. Ruddick | Recording Dynamometer | dynamometers |
| 248,686 | Oct. 25, 1881 | W.A. Allen | Machine for sawing kindling-wood | firewood machines |
| 248,728 | Oct. 25, 1881 | H.F. Frisbie | Puppet Valve | steam engine valves |
| 248,729 | Oct. 25, 1881 | H.F. Frisbie | Puppet Valve | steam engine valves |
| 248,744 | Oct. 25, 1881 | B. Holmes | Machine for grinding steel bars | grinders |
| 248,761 | Oct. 25, 1881 | A. Krieger | Insertable saw-tooth | insertable saw teeth |
| 248,823 | Oct. 25, 1881 | W.A. Wright | Guide for sawing-machines | woodworking machine stockfeeding mechanisms |
