| All Patents in class 269/220 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 197,672 | Nov. 27, 1877 | A.M. Schappa | Improvement in Hand Screw-Clamps | hand screws |
| 214,403 | Apr. 15, 1879 | W.F. Lane | Improvement in Hand Screw-Clamps | hand screws |
| 227,686 | May 18, 1880 | J. Goodrich | Tool For Grasping and Holding Articles | hand vises |
| 275,335 | Apr. 03, 1883 | T.G. Hall | Tool For Grasping and Holding Articles | brace wrenches |
| 308,356 | Nov. 25, 1884 | J. Goodrich | Tool For Grasping and Holding Articles | brace wrenches |
| 534,164 | Feb. 12, 1895 | M.F. Larsh | Hand Screw-Clamp | hand screws |
| 687,836 | Dec. 03, 1901 | H. Jorgensen | Hand-Screw Clamp | hand screws |
| 781,958 | Feb. 07, 1905 | H.A. Knoke | Clamp | hand screws |
| 810,543 | Jan. 23, 1906 | H.A. Knoke | Clamp | hand screws |
| 893,831 | Jul. 21, 1908 | H.A. Adams | Parallel Clamp | hand screws |
| 941,504 | Nov. 30, 1909 | D.A. Ducharme | Clamp | hand screws |
| 952,182 | Mar. 15, 1910 | N. Bouma | Clamp | hand screws |
| 968,038 | Aug. 23, 1910 | L.J. Everest | Clamp | hand screws |
| 1,034,357 | Jul. 30, 1912 | H. Geisenhoner | Hand Screw-Clamp | hand screws |
| 1,346,236 | Jul. 13, 1920 | H. Muller | Joiner's Clamp | hand screws |
