| All Patents in class 81/97 |
Patents 16 -
30
of 95
      |
| Number | Date | Patentee | Title | Type |
| 132,823 | Nov. 05, 1872 | P.L. Gibbs | Improvement in Wrenches | ratchet wrenches |
| 157,082 | Nov. 24, 1874 | H.D. Rouse | Wrenches | pipe wrenches |
| 160,415 | Mar. 02, 1875 | C.H. Fulmer | Pipe-Wrench | pipe wrenches |
| 164,368 | Jun. 15, 1875 | C. Fenton | Pipe Tongs and Cutters | wrench combination tools |
| 171,333 | Dec. 21, 1875 | J.A. White | Pipe-Wrench | quick adjust wrenches |
| 174,354 | Mar. 07, 1876 | I. Cressey | Pipe-Wrench | pipe wrenches |
| 195,589 | Sep. 25, 1877 | B. Donohue | Combined Wrench and Pipe-Cutter | combination tools |
| RE8,064 | Jan. 29, 1878 | J. McLaren | Improvement in Wrenches | pipe and nut combination wrenches |
| 203,774 | May 14, 1878 | H.F. Read | Wrench Attachment | pipe jaw attachments for wrenches |
| 208,440 | Sep. 24, 1878 | W.L. Truland | Pipe-Wrench With Cutter | combination tools |
| 217,117 | Jul. 01, 1879 | W.B. Killough | Wrench | pliers type wrenches |
| 231,023 | Aug. 10, 1880 | J. Everding | Pipe Wrench | pipe wrenches |
| 238,369 | Mar. 01, 1881 | B. Donohue | Wrench | pipe wrenches |
| 255,182 | Mar. 21, 1882 | M.H. McNair | Improved Differential Self-Adjusting Wrench | self-adjust wrenches |
| 261,486 | Jul. 18, 1882 | J.E. Sanders | Pipe Wrench | screw adjust wrenches |
