| All Patents in class 81/184 |
Patents 31 -
45
of 50
      |
| Number | Date | Patentee | Title | Type |
| 574,487 | Jan. 05, 1897 | H.J. Kapka | Wrench | screw adjust wrenches |
| 585,329 | Jun. 29, 1897 | E.C. Neal | Wrench Attachment | pipe jaw attachments for wrenches |
| 599,001 | Feb. 15, 1898 | L.N. Leonard | Combined Pipe and Nut Wrench | pipe jaw attachments for wrenches |
| 622,486 | Apr. 04, 1899 | C.F. Johnson | Wrench | wrench jaw components |
| 638,475 | Dec. 05, 1899 | G.W. Rouse | Wrench Atttachment | pipe jaw attachments for wrenches |
| 713,492 | Nov. 11, 1902 | P. Rayson | Adjustable Pipe Grip | pipe jaw attachments for wrenches |
| 740,812 | Oct. 06, 1903 | O.E. Kovar | Interchangeable Wrench | pipe and nut combination wrenches |
| 749,632 | Jan. 12, 1904 | G.W. Rouse | Wrench Attachment | pipe jaw attachments for wrenches |
| 776,111 | Nov. 29, 1904 | A.L. Cherry | Wrench Attachment | pipe jaw attachments for wrenches |
| 790,860 | May 23, 1905 | H.G. Weatherill | Wrench | pipe jaw attachments for wrenches |
| 791,117 | May 30, 1905 | F.M. Uren | Attachment for Wrenches | pipe jaw attachments for wrenches |
| 808,603 | Dec. 26, 1905 | J.J. Fetzer | Wrench | screw adjust wrenches |
| 886,448 | May 05, 1908 | J.E. Wakefield | Wrench | screw adjust wrenches |
| 902,830 | Nov. 03, 1908 | A.W. Peterson | Wrench | quick adjust wrenches |
| 942,993 | Dec. 14, 1909 | L.V. Aronson | Combination Wrench | wrench set holders |
