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| All Patents in class 81/455 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 290,218 | Dec. 18, 1883 | C.W. Drake | Screw holding screwdriver | |
 | 455,645 | Jul. 07, 1891 | T. Spriggs | Bolt-Grip | |
 | 625,046 | May 16, 1899 | C.A. Mann | Screwdriver | |
| 4,003,417 | Jan. 18, 1977 | L. Cornwell | Self Locking and Unlocking Clamp for Automatic Fastener Driving Tools | ||