| All Patents in class 81/183 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 84,111 | Nov. 17, 1868 | A.C. Greth | Wrench | pipe jaw attachments for wrenches |
| 300,127 | Jun. 10, 1884 | W.H. Ratcliff | Sliding Jaw Wrench | pipe jaw attachments for wrenches |
| 348,185 | Aug. 31, 1886 | J.D. Bowman | Improvement in Stud-Wrenches | wrenches |
| 397,954 | Feb. 19, 1889 | G. Pendleton, Jr., W.C. Worthen | Wrench | pipe wrenches |
| 400,380 | Mar. 26, 1889 | G. Pendleton, Jr., W.C. Worthen | Improvement in Pipe Wrenches | pipe wrenches |
| 439,919 | Nov. 04, 1890 | N.M. Willet | Wrench | pipe jaw attachments for wrenches |
| 453,761 | Jun. 09, 1891 | C.W. Le Count | Lathe Dog | lathe dogs |
| 568,692 | Sep. 29, 1896 | M.D. Martindale | Wrench For Turning Pipes or Other Round Objects | pipe wrenches |
| 569,037 | Oct. 06, 1896 | T. Dixon | Improved Combination Pipe and Monkey Wrench | quick adjust wrenches |
| 784,200 | Mar. 07, 1905 | J.C. Zumwalt | Wrench Attachment | pipe jaw attachments for wrenches |
| 1,015,504 | Jan. 23, 1912 | P. Meyer | Screw-Wrench | wrench jaw components |
| 1,200,430 | Oct. 03, 1916 | J.B. Rosenstein | Adjustable Ratchet-Wrench | ratchet wrenches |
| 1,224,801 | May 01, 1917 | E. Sprung | Stud Extractor and Tightener | stud extractors |
| 1,314,964 | Sep. 02, 1919 | D.G. Kennedy | Ratchet Wrench | ratchet wrenches |
| 2,550,010 | Apr. 24, 1951 | A. Kavalar | One-Way Engaging Wrench Having Guided Work-Engaging Rollers | ratchet wrenches |
