| Patents Granted on 1881-??-?? |
Patents 1 -
15
of 720
      |
| Number | Date | Patentee | Title | Type |
| CA-12,729 | Jan. 01, 1881 | W. Stephenson | Machine a Vapeur, Machine a Traction, Rouleu D'Agriculture, Charrue, Herse et Semoir-Traceur | steam traction engines |
| CA-13,176 | Jan. 01, 1881 | H. Monk, W. Monk, C.W. Carrier | Improvements on steam engines | steam engines |
| CA-13,403 | Jan. 01, 1881 | C.W. Carrier, W. Monk, H. Monk | Improvements on steam engines | steam engines |
| CA-13,404 | Jan. 01, 1881 | C.W. Carrier, W. Monk, H. Monk | Improvements on steam engines | steam engines |
| CA-13,877 | Jan. 01, 1881 | H.R. Boys | Improvements on steam engine lubricators | steam engine lubricators |
| 236,163 | Jan. 04, 1881 | W. Jones | Scroll-saw | scrollsaws |
| 236,236 | Jan. 04, 1881 | J.W. McKee | Drag-sawing machine | drag saws |
| 236,258 | Jan. 04, 1881 | J. Ravel | Oscillating Gas Motor | gas and gasoline engines |
| 236,333 | Jan. 04, 1881 | F.A. Huntington | Ore crusher and pulverizer | ore processing apparatus |
| 236,335 | Jan. 04, 1881 | W.H. Johnson | Saw-clamp | saw vises |
| 236,347 | Jan. 04, 1881 | D. McPherson | Grain Binder | grain binders |
| 236,401 | Jan. 11, 1881 | D. Robertson, J.R. Adams | Detachable Lip for Augers | auger bits |
| 236,420 | Jan. 11, 1881 | J.W. Doubleday | Punch | washer cutters |
| 236,422 | Jan. 11, 1881 | R. Bickemeyer | Lathe for turning irregular forms | pattern lathes |
| 236,469 | Jan. 11, 1881 | C.D. Waters | Square & Bevel Suface Gage | surface gauges |
