| Patents Granted on 1891-04-__ |
Patents 1 -
15
of 85
      |
| Number | Date | Patentee | Title | Type |
| CA-36,245 | Apr. 01, 1891 | C.A. Higbee | Screw bolt and nut | firefighting tools |
| CA-36,254 | Apr. 01, 1891 | G.H. Buzzell | Wrench for Pipes | alligator wrenches |
| 449,666 | Apr. 07, 1891 | J.E. Carpenter | Wood-polishing machine | sanding machines |
| 449,696 | Apr. 07, 1891 | W.J. Perkins | Miter-cutting machine | miter machines |
| 449,697 | Apr. 07, 1891 | J.L. Perry | Wood-polishing machine | sanding machines |
| 449,722 | Apr. 07, 1891 | A.C. Whittier | Wrench for Pipe-Work | screw adjust wrenches |
| 449,749 | Apr. 07, 1891 | A.W. Roovers | Vending machine | |
| 449,758 | Apr. 07, 1891 | N.L. Le Turcq des Rosiers | Process of Collecting the Aromatic and Volatile Substances from Coffee | coffee roasters |
| 449,772 | Apr. 07, 1891 | A.D. Catlin | Resawing-machine | circular resaws |
| 449,793 | Apr. 07, 1891 | C.A. Driver | Improvements in Ratchet Drills or Wrenches | ratchet wrenches |
| 449,796 | Apr. 07, 1891 | H. Haedicke | Monkey Wrench | self-adjust wrenches |
| 449,850 | Apr. 07, 1891 | O. Hammarstrom | Coffee Roaster | coffee roasters |
| 449,864 | Apr. 07, 1891 | J.E. Sackett | Rotary Steam Engine | rotary steam engines |
| 449,950 | Apr. 07, 1891 | L.J. Gregor, J.F. Rodgers | Sandpapering-head | sanding machines |
| 449,987 | Apr. 07, 1891 | C. Wies | Vise | vises |
