| All Patents in class 81/443 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 143,757 | Oct. 21, 1873 | G.W. Harris | Wrenches For Bung-Bushings | wrenches |
| 1,075,225 | Oct. 07, 1913 | C.S. Reamy | Screw holding screwdriver | screwdriver blades |
| 1,627,301 | May 03, 1927 | G. Wood | Screw holding screwdriver | screwdriver blades |
| 1,647,343 | Nov. 01, 1927 | B.J. Catron | Automobile Tool | automotive tools |
| 1,699,306 | Jan. 15, 1929 | E.L. Millen | Gripping Screwdriver | screwdriver blades |
| 1,742,278 | Jan. 07, 1930 | A.J. Reid | Screw holding screwdriver | screwdriver blades |
| 2,472,673 | Jun. 07, 1949 | E.L. Millen | Screw holding screwdriver | screwdriver blades |
| 2,476,608 | Jul. 19, 1949 | J.M. Kinsey | Gate Box Turning Tool | valve turning tools |
| 2,556,945 | Jun. 12, 1951 | E.M. Roddick | Backout or Nipple Wrench | pipe wrenches |
