| All Patents in class 409/331 |
Patents 16 -
22
of 22
      |
| Number | Date | Patentee | Title | Type |
| 807,123 | Dec. 12, 1905 | P.G. March | Shaping-machine | metal shapers |
| 807,404 | Dec. 12, 1905 | J.C. Steen | Shaping-machine | metal shapers |
| 1,268,007 | May 28, 1918 | H. Arundel, J. Higginson | Machine for Producing Milling Cutters | milling machine cutters |
| 2,431,230 | Nov. 18, 1947 | W.S. Cooper | Portable Planer | metal planers |
| 2,516,224 | Jul. 25, 1950 | J.F. Ludeman | Shaping Attachment for Metalworking Lathes | metal lathe accessories and attachments |
| 2,529,680 | Nov. 14, 1950 | C.A. Parske, T.F. Eserkaln | Slotting Machine | milling machine accessories |
| 2,688,903 | Sep. 14, 1954 | H.L. Hager | Shaper Attachment for Lathes | metal shapers |
