| All Patents in class 81/391 |
Patents 1 -
15
of 43
      |
| Number | Date | Patentee | Title | Type |
| 136,350 | Feb. 25, 1873 | T. Williams | Pipe-Wrenches | pipe tongs |
| 139,174 | May 20, 1873 | F.H. Merrill | Improved Pipe Tongs | pipe tongs |
| 172,550 | Jan. 25, 1876 | J.R. Brown | Pipe-Tongs | pipe tongs |
| 174,142 | Feb. 29, 1876 | C.B. Martin | Improvement in Nut-Crackers | nutcrackers |
| 186,099 | Jan. 09, 1877 | E.F. Barnes | Pipe Tongs and Cutter | pipe tongs |
| 186,925 | Feb. 06, 1877 | W. Dicks | Improvements in Adjustable-Grasp Wrenches | quick adjust wrenches |
| 259,895 | Jun. 20, 1882 | C.H. Miller | Pipe Tongs | pipe tongs |
| 266,310 | Oct. 24, 1882 | D.R. Porter | Combined Wrench, Vise and Nail Puller | combination tools |
| 282,256 | Jul. 31, 1883 | E.F. Barnes | Improvements in Pipe-Tongs and Wrench Combined | pipe tongs |
| 419,816 | Jan. 21, 1890 | B.G. Berrien, Jr. | Improved Pipe Wrench | pipe tongs |
| 425,647 | Apr. 15, 1890 | T. Young | Wrench | quick adjust wrenches |
| 474,810 | May 17, 1892 | A.B. Carll | Wrench | pipe wrenches |
| 519,774 | May 15, 1894 | M.C. Randleman, Z.S. Randleman | Improved Adjustable Tongs, Wrench and Vise | combination tools |
| 540,409 | Jun. 04, 1895 | E.J. Stone | Pipe Wrench | pliers type wrenches |
| 567,945 | Sep. 15, 1896 | E.L. Keith | Lock Jaw Wrench | quick adjust wrenches |
