| Patents for S. W. Piper |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| D6,764 | Jul. 08, 1873 | S.W. Putnam, Jr. | Design for frame of bolt-threading machines | metal threading machines |
| 142,143 | Aug. 26, 1873 | J.R. Brown | Pipe-Tongs | pipe tongs |
| 145,929 | Dec. 30, 1873 | J.R. Brown | Pipe-Tongs | pipe tongs |
| 150,131 | Apr. 28, 1874 | J.R. Brown | Pipe-Tongs | pipe tongs |
| 164,942 | Jun. 29, 1875 | G.C. Sims | Governor for Steam Engines | steam engine governors |
| 172,550 | Jan. 25, 1876 | J.R. Brown | Pipe-Tongs | pipe tongs |
| 172,551 | Jan. 25, 1876 | J.R. Brown | Improvement in Coach-Wrenches | pipe and nut combination wrenches |
| 174,354 | Mar. 07, 1876 | I. Cressey | Pipe-Wrench | pipe wrenches |
| 181,331 | Aug. 22, 1876 | A. Gruber | Improvement in Dividers | dividers |
| 185,486 | Dec. 19, 1876 | C.H. Bush | Screw-Driver | screwdriver handles |
| 188,298 | Mar. 13, 1877 | R. Jones | Coach-Wrench | quick adjust wrenches |
