| All Patents in class 81/98 |
Patents 46 -
60
of 97
      |
| Number | Date | Patentee | Title | Type |
| 487,331 | Dec. 06, 1892 | J.W. Kellam | Adjustable Flange Wrench | flange wrenches |
| 496,753 | May 02, 1893 | C.H. Gage, J. Smith | Pipe Wrench | pipe wrenches |
| 497,517 | May 16, 1893 | G. Ehrhardt | Lathe Dog | lathe dogs |
| 497,797 | May 23, 1893 | R.C. Jones | Pipe Tongs | pipe tongs |
| 506,070 | Oct. 03, 1893 | G. Plante | Combined Wrench and Cutter | pipe wrenches |
| 514,936 | Feb. 20, 1894 | W. King | Pipe Tongs | pipe tongs |
| 520,411 | May 29, 1894 | T.E. Chatten | Wrench | pipe wrenches |
| 538,745 | May 07, 1895 | V.C. Rocholl | Pipe Wrench | pipe wrenches |
| 548,571 | Oct. 22, 1895 | G.H. Miller | Pipe Wrench | pipe wrenches |
| 561,578 | Jun. 09, 1896 | E.B. Frizelle | Pipe Wrench | pipe wrenches |
| 567,229 | Sep. 08, 1896 | W.I. Freeman | Pipe Wrench | pipe wrenches |
| 569,533 | Oct. 13, 1896 | H.C. Atkinson | Combined Pipe Wrench and Cutter | |
| 581,737 | May 04, 1897 | J.P. Kennedy | Pipe Wrench | pipe wrenches |
| 582,341 | May 11, 1897 | P.H. Campbell | Wrench | pipe wrenches |
| 599,334 | Feb. 22, 1898 | O.D. Kahl, W.A. Humphrey | Wrench | pipe wrenches |
