| Patents for W. W. Hollingsworth |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 162,120 | Apr. 13, 1875 | J.E. Taylor | Steam Engine Cylinder | steam engine cylinders |
| 167,364 | Aug. 31, 1875 | J.W. Thompson | Indicator for Steam Engines | steam engine indicators |
| 172,141 | Jan. 11, 1876 | J.L. Brown, J.B. McCormick | Turbine Water-Wheel | turbine water wheels |
| 184,445 | Nov. 14, 1876 | S.N. Trump, C.N. Trump | Collet chuck | drill press chucks |
| 187,348 | Feb. 13, 1877 | R.M. Beck | Mounting for Portable Engines | portable steam engines |
| 258,401 | May 23, 1882 | A.O. Frick | Traction Engine | steam traction engines |
| 262,840 | Aug. 15, 1882 | W. Tyack, R. Simmons | Wrench | pipe wrenches |
| 263,159 | Aug. 22, 1882 | A.O. Frick | Traction Engine | steam traction engines |
| 305,920 | Sep. 30, 1884 | J. Hamm | Marker for Weather-Boards, Flooring, and Jambs | clapboard markers |
| 307,927 | Nov. 11, 1884 | T.W. Maxey, W.J. Dyer | Weather-Board Gage | clapboard markers |
| 330,594 | Nov. 17, 1885 | S.J. Lea | Wrench | pipe and nut combination wrenches |
| 336,468 | Feb. 16, 1886 | C. Bonnichsen, M.R. Chrystal | Pipe Wrench | chain and strap wrenches |
