| All Patents in class 76/5.1 |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 924,907 | Jun. 15, 1909 | P.W. Jones | Metal Shaping Machine | metal rolling machines |
| 1,254,753 | Jan. 29, 1918 | C.H. Whipple | Machine for Manufacturing Twist Drills & Other Articles | making drills and augers |
| 1,531,489 | Mar. 31, 1925 | J.R. Bowie, G.P. Macready | Pneumatic drop hammer | drop hammers |
| 1,775,787 | Sep. 16, 1930 | U.F. Steindorff, H.J. Heller | Power-driven shears | metal shearing machines |
| 1,775,791 | Sep. 16, 1930 | G.A. Ungar | Cutting shears and driving mechanism therefor | metal shearing machines |
| 1,869,006 | Jul. 26, 1932 | W.W. Criley | Solid Die Header | forging apparatus and accessories |
| 2,038,165 | Apr. 21, 1936 | W.W. Criley | Forging Machine | forging machines |
| 2,545,676 | Mar. 20, 1951 | L. Small | Diamond impregnated dressing tool | grinder dressers |
| 2,639,632 | May 26, 1953 | H.P. Boggis, F.F. Criley | Forging machine | forging machines |
| 5,367,836 | Nov. 29, 1994 | K.H. Allen | Automatic Drill Loader | tool changers and storage mechanisms |
