| Patents Granted on 1881-12-?? |
Patents 1 -
15
of 63
      |
| Number | Date | Patentee | Title | Type |
| 250,346 | Dec. 06, 1881 | J. Coyne | Nail Cutting Machine | nail making machines |
| 250,367 | Dec. 06, 1881 | I. Kinney | Wrench & Pipe Cutter | pipe and nut combination wrenches |
| 250,393 | Dec. 06, 1881 | J.H. Riley, J.D. Albert | Saw set | saw sets |
| 250,400 | Dec. 06, 1881 | J.N. Skinner | Lathe Chuck | metal lathe chucks |
| 250,415 | Dec. 06, 1881 | J.C. Baker | Lathe Chuck | metal lathe chucks |
| 250,425 | Dec. 06, 1881 | H.J. Colburn | Circular sawing machine | tablesaws |
| 250,455 | Dec. 06, 1881 | F.A. Savage | Spoke-finishing machine | wheelwright |
| 250,459 | Dec. 06, 1881 | L.W. Stockwell | Machine for Threading Bolts | metal threading machines |
| 250,464 | Dec. 06, 1881 | J. Thomson | Differential screw | bench vises |
| 250,467 | Dec. 06, 1881 | S. Wheeler | Portable writing-case | |
| 250,472 | Dec. 06, 1881 | G.H. Zschech | Wheel for saw-mill carriages | sawmill carriages |
| 250,493 | Dec. 06, 1881 | O. Brothers, Jr. | Lubricating Wrench | axle nut wrench combination tools |
| 250,514 | Dec. 06, 1881 | J. Flower | Turret Lathe | turret lathes |
| 250,557 | Dec. 06, 1881 | S. Males | Drag-saw | drag saws |
| 250,571 | Dec. 06, 1881 | P. Pearson | Apparatus for Roasting Coffee and Other Vegetable Substances | coffee roasters |
