| All Patents in class 409/335 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 77,225 | Apr. 28, 1868 | R.S. Eddy, W.H. Smith | Shaping Key-Seats | key seating machines |
| 286,221 | Oct. 09, 1883 | S.B. Pierce | Machine for Cutting Key Seats | key seating machines |
| 299,496 | May 27, 1884 | J. Richards | Metal Boring and Slotting Machine | vertical boring mills |
| 325,695 | Sep. 08, 1885 | D.W. Porter | Key Seating Machine | key seating machines |
| 367,782 | Aug. 09, 1887 | F.H. Brown | Convertable Machine for Slotting or Drilling | drill presses |
| 373,680 | Nov. 22, 1887 | M. Morton | Key and Key Seat Cutter | key seating machines |
| 389,243 | Sep. 11, 1888 | J.E. Palethorp, R.A. Palmer | Key Seat Cutting Machine | key seating machines |
| 390,306 | Oct. 02, 1888 | M. Morton | Portable Key Seat Cutter | key seating machines |
| 416,479 | Dec. 03, 1889 | G.W. Marshall | Combined Key Seat and Key Cutting Machine | key seating machines |
| 453,653 | Jun. 09, 1891 | M. Morton | Combined Portable Planer and Key Seat Machine | key seating machines |
| 472,546 | Apr. 12, 1892 | W.D. McNaull | Radial-drilling machine | radial drill presses |
| 477,737 | Jun. 28, 1892 | L.H. Colburn | Slotting Machine | key seating machines |
| 493,151 | Mar. 07, 1893 | C.A. Collord | Metal Shaping Machine | metal shapers |
| 540,095 | May 28, 1895 | A. Britt, A. Giesler | Splining Machine | metalworking machines |
| 589,010 | Aug. 31, 1897 | W. Merrill | Key-seat-cutting machine | key seating machines |
