| All Patents in class 411/403 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 101,207 | Mar. 29, 1870 | A.S. Apgar | Improvement in Screw and Screw-Driver | screwdriver blades |
| 376,584 | Jan. 17, 1888 | H.D. Cone | Wrench | ratchet wrenches |
| 479,175 | Jul. 19, 1892 | C.D. Rogers | Wood Screw and Method of Making the Same | screws |
| 960,244 | Jun. 07, 1910 | W.G. Allen | Manufacture of Screws | |
| 975,285 | Nov. 08, 1910 | P.L. Robertson | Screw | |
| 1,908,080 | May 09, 1933 | J.P. Thompson | Screw | |
| 2,447,889 | Aug. 24, 1948 | C. Adler | Sine Angle Plate | sine bars |
| 4,512,220 | Apr. 23, 1985 | W.T. Pagac, M.L. Barnhill, III | Fast Lead Socket Wrench | wrench sockets |
| 4,882,957 | Nov. 28, 1989 | B.P. Fleming, T.M. Vozenilek, R.B. Wright | Socket Wrench Opening | wrench sockets |
| 5,277,531 | Jan. 11, 1994 | B. Krivec | Device having socket with retention surfaces | |
