| All Patents in class 409/347 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 71,401 | Nov. 26, 1867 | C.A. Meinhard | Planing and Slotting | metal planers |
| 144,851 | Nov. 25, 1873 | D. Larer | Diamond Mill-Stone Dressing Machines | stone dressing machines |
| 324,491 | Aug. 18, 1885 | H. Schumann | Profile-cutting machine | specialty woodworking machines |
| 1,363,587 | Dec. 28, 1920 | B.M. Hanson | Metal Working Machine | metal slotting machines |
| 3,152,514 | Oct. 13, 1964 | P.E. Olson | Tool Lifter for Planer or the Like | metal planer accessories |
| 3,446,117 | May 27, 1969 | E.P. Bullard, III | Retractable Tool Support | metalworking machine mechanisms |
| 6,942,438 | Sep. 13, 2005 | S.L. Deguise | Keyway Cutter Tool and Method | keyway cutting machines |
