| All Patents in class 81/138 |
Patents 1 -
10
of 23
      |
| Picture | Number | Date | Patentee | Title |
 | 148,965 | Mar. 24, 1874 | A.E. Lindsley | Wrenches |
 | 149,840 | Apr. 21, 1874 | W.H. Crittendon | Wrenches |
 | 302,760 | Jul. 29, 1884 | T. Mokler | Pipe Wrench |
 | 306,439 | Oct. 14, 1884 | B.F. Stockford | Wrench |
 | 306,440 | Oct. 14, 1884 | L.S. Stone, M. Watson | Envelope Opener, Paper Cutter, &c. |
 | 389,666 | Sep. 18, 1888 | B. Reagan | Improvements in Pipe Tongs |
 | 430,656 | Jun. 24, 1890 | E.E. King | Combination Nut and Pipe Wrench |
 | 431,081 | Jul. 01, 1890 | B.F. Stockford | Nut Wrench |
 | 498,782 | Jun. 06, 1893 | J. Geisler | Nut Wrench |
 | 502,997 | Aug. 08, 1893 | E.S. Pratt | Monkey Wrench |
