| All Patents of Type: hand screws |
Patents 1 -
15
of 32
      |
| Number | Date | Patentee | Title | Type |
| 57,195 | Aug. 14, 1866 | H. Schmidt | Screw Clamp | hand screws |
| 71,983 | Dec. 10, 1867 | G.H. Coe, G.H. Snow | Improvement in clamps | hand screws |
| 126,425 | May 07, 1872 | S.L. Thompson | Improvement in Hand-Clamps | hand screws |
| 178,022 | May 30, 1876 | G.A. Naumann | Improvement in Joiners Clamps | hand screws |
| 179,942 | Jul. 18, 1876 | G.A. Naumann | Improvement in Joiners Clamps | hand screws |
| 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 |
| 229,008 | Jun. 22, 1880 | C.F. Pettingell | Hand-screw | hand screws |
| 237,431 | Feb. 08, 1881 | A.M. Colt | Clamp for Wood Working | hand screws |
| D13,690 | Mar. 06, 1883 | A.J. Benjamin | Hand Screw Or Clamp | hand screws |
| 357,524 | Feb. 08, 1887 | W.H. Denney | Clamp or vise | hand screws |
| 385,983 | Jul. 10, 1888 | P.A. Whitney | Clamp | hand screws |
| 386,279 | Jul. 17, 1888 | W.P. Tarbell | Clamp | hand screws |
| 410,303 | Sep. 03, 1889 | G.A. Waterhouse | Hand Screw Clamp | hand screws |
| 534,164 | Feb. 12, 1895 | M.F. Larsh | Hand Screw-Clamp | hand screws |
