| Patents Granted on 1891-??-?? |
Patents 1 -
15
of 1020
      |
| Number | Date | Patentee | Title | Type |
| CA-36,270 | Jan. 01, 1891 | C.C. Carlyle | Steam engine | steam engines |
| CA-37,910 | Jan. 01, 1891 | B.R. Patten | Steam actuated valve for steam engines and pumps | |
| D20,448 | Jan. 06, 1891 | R.C. Ellrich | Design For A Monkey Wrench | wrench handle components |
| 443,989 | Jan. 06, 1891 | W.S. Davis | Bit-stock | |
| 444,031 | Jan. 06, 1891 | G.J. Weber | Gas Engine and Igniter Therefore | ignition systems |
| 444,035 | Jan. 06, 1891 | G. Wyatt | Pliers | pliers |
| 444,087 | Jan. 06, 1891 | S.E. Chapleau | Rotary Compound Steam Engine | rotary steam engines |
| 444,111 | Jan. 06, 1891 | C. Birkery, W.J. Shea | Wrench | socket wrenches |
| 444,155 | Jan. 06, 1891 | E.D. Swift | Sandpapering-machine | sanding machines |
| 444,161 | Jan. 06, 1891 | F.J. Roche | Combined Screwdriver, Gimlet & Reamer Bit | countersinks |
| 444,165 | Jan. 06, 1891 | J.B. West | Gage for tire-setters | wheelwright |
| 444,171 | Jan. 06, 1891 | T.F. Vandegrift | Wrench | wedge adjust wrenches |
| 444,196 | Jan. 06, 1891 | J.H. Parks | Clinometer or Slope Measurer | clinometers |
| 444,207 | Jan. 06, 1891 | F.W. Brocksieper | Pliers | pliers |
| 444,245 | Jan. 06, 1891 | A. Hormel | Electric annunciator | electrical devices |
