| All Patents in class 72/357 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 178,967 | Jun. 20, 1876 | W. Sellers | Hydraulic Apparatus for Holding Bars of Iron Against the Pressure Required to Upset Them | metalworking machine mechanisms |
| 373,612 | Nov. 22, 1887 | F. Schreidt | Machine for Upsetting Carriage Irons | |
| 1,595,588 | Aug. 10, 1926 | W.L. Tuttle | Method and Apparatus for Making Wrench Sockets | making wrenches |
| 1,691,878 | Nov. 13, 1928 | J.R. Blakeslee | Metal Working | dies for punch presses |
| 1,691,879 | Nov. 13, 1928 | J.R. Blakeslee | Forging Mechanism | forging apparatus and accessories |
| 2,027,922 | Jan. 14, 1936 | N.F. McNaught | Method of making wrench sockets | |
| 2,343,403 | Mar. 07, 1944 | W.W. Criley | Forging Machine | forging machines |
| 3,302,438 | Feb. 07, 1967 | B.F. Ware | Forging Machine for Extruding and Working Metal Articles | forging machines |
