| Patents for S. W. Piper |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | D6,764 | Jul. 08, 1873 | S.W. Putnam, Jr. | Design for frame of bolt-threading machines |
 | 142,143 | Aug. 26, 1873 | J.R. Brown | Pipe-Tongs |
 | 145,929 | Dec. 30, 1873 | J.R. Brown | Pipe-Tongs |
 | 150,131 | Apr. 28, 1874 | J.R. Brown | Pipe-Tongs |
 | 164,942 | Jun. 29, 1875 | G.C. Sims | Governor for Steam Engines |
 | 172,550 | Jan. 25, 1876 | J.R. Brown | Pipe-Tongs |
 | 172,551 | Jan. 25, 1876 | J.R. Brown | Improvement in Coach-Wrenches |
 | 174,354 | Mar. 07, 1876 | I. Cressey | Pipe-Wrench |
 | 181,331 | Aug. 22, 1876 | A. Gruber | Improvement in Dividers |
 | 185,486 | Dec. 19, 1876 | C.H. Bush | Screw-Driver |
