| All Patents in class 81/455 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 290,218 | Dec. 18, 1883 | C.W. Drake | Screw holding screwdriver | screwdriver mechanisms |
| 415,481 | Nov. 19, 1889 | C.G. Teubner | Screw holding screw Bit | screwdriver blades |
| 455,645 | Jul. 07, 1891 | T. Spriggs | Bolt-Grip | wrenches |
| 604,250 | May 17, 1898 | G.B. Jocelyn | Screw holding screwdriver | screwdriver blades |
| 625,046 | May 16, 1899 | C.A. Mann | Screwdriver | screwdriver blades |
| 651,949 | Jun. 19, 1900 | T.R. Lillie | Screw Holding Screwdriver | screwdriver blades |
| 686,078 | Nov. 05, 1901 | A. Johnson | Screw Holding Screwdriver | screwdriver blades |
| 686,192 | Nov. 05, 1901 | G.T. Bailey | Screw Holding Screwdriver | screwdriver blades |
| 4,003,417 | Jan. 18, 1977 | L. Cornwell | Self Locking and Unlocking Clamp for Automatic Fastener Driving Tools | |
