All Patents of Type: screw starters |
Patents 1 -
14
of 14
|
Number | Date | Patentee | Title | Type |
79,509 | Jun. 30, 1868 | N. Smith | Screw holding screwdriver | screw starters |
96,263 | Oct. 26, 1869 | J.C. Pinner | Screw holding screwdriver | screwdriver blades |
108,383 | Oct. 18, 1870 | A. Newton | Screw holding screwdriver | screwdriver blades |
302,067 | Jul. 15, 1884 | A.D. Wallen | Screw holding screwdriver | screwdriver blades |
303,003 | Aug. 05, 1884 | G.W. Hael | Screw holding screwdriver | screwdriver blades |
306,394 | Oct. 14, 1884 | G.W. Hael | Screw holding screwdriver | screwdriver blades |
382,670 | May 08, 1888 | J.C. Trovillion | Combined Screw Hold, Screw Driver and Counter Sink | screwdriver blades |
896,731 | Aug. 25, 1908 | W.A. Johnston | Screw holding screwdriver | screwdriver blades |
1,212,743 | Jan. 16, 1917 | J.W. Cowell | Screw Holding Device | screwdriver blades |
1,360,368 | Nov. 30, 1920 | G.N. Coburn | Screw holding screwdriver | screwdriver blades |
1,722,116 | Jul. 23, 1929 | S.E. Spofford | Screw holding screwdriver | screw starters |
1,742,278 | Jan. 07, 1930 | A.J. Reid | Screw holding screwdriver | screwdriver blades |
1,781,470 | Nov. 11, 1930 | E. Mueller | Screw holding screwdriver | screw starters |
2,150,184 | Mar. 14, 1939 | G.F. Pearson | Screw holding screwdriver | screw starters |