| All Patents in class 81/176.2 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 412,024 | Oct. 01, 1889 | T.S. Disston | Improvement in Wrenches For Inserting Saw Teeth |
 | 466,232 | Dec. 29, 1891 | P.G. Metzler, E. Harper | Flange Wrench |
 | 542,922 | Jul. 16, 1895 | W.H. Brock | Flange Wrench |
 | 760,532 | May 24, 1904 | A.J. Gerhardt | Wrench For Meat Choppers |
 | 790,853 | May 23, 1905 | J.F. Reddy | Flange Wrench |
 | 898,657 | Sep. 15, 1908 | P.L. Kimball | Wrench |
 | 970,371 | Sep. 13, 1910 | U.C. Greggs | Wrench |
 | 983,562 | Feb. 07, 1911 | M. Murray | Pipe Flange Wrench |
| | 2,086,722 | Jul. 13, 1937 | C.J. Matuella | Valve Turning Tool |
