| All Patents in class 409/335 |
Patents 16 -
27
of 27
      |
| Number | Date | Patentee | Title | Type |
| 589,011 | Aug. 31, 1897 | W. Merrill | Key Seating Machine | key seating machines |
| 599,054 | Feb. 15, 1898 | L.H. Colburn | Machine for Cutting Slots | key seating machines |
| 618,894 | Feb. 07, 1899 | M. Morton, H.E. Morton | Key-seat-cutting machine | key seating machines |
| 748,844 | Jan. 05, 1904 | L.H. Colburn | Slotting Machine | key seating machines |
| 755,849 | Mar. 29, 1904 | L.H. Colburn | Vertical Shaper | metal shapers |
| 757,562 | Apr. 19, 1904 | H.E. Morton, M. Morton | Slotting Machine | metal slotting machines |
| 937,707 | Oct. 19, 1909 | G. Langen, C. Meier | Side-Head Tool-Holder for Metal-Planers | metal planer tool holders |
| 1,025,152 | May 07, 1912 | P.S. Mitts | Oil Groove Cutting Attachment for Key Seating Machines | key seating machines |
| 1,100,990 | Jun. 23, 1914 | L.E. Rhodes | Metal Shaper Machine | metal shapers |
| 1,306,266 | Jun. 10, 1919 | E.J. Luster | Automatic profiling-machine | box making machines |
| 2,084,061 | Jun. 15, 1937 | H.E. Morton | Keyway Forming Machine | metal shapers |
| 3,757,638 | Sep. 11, 1973 | J. Martin | Five-Axis Shaper | metal shapers |
