| All Patents in class 409/307 |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 10,873 | May 02, 1854 | P. Williams, II | Slotting Machine | key seating machines |
| 46,758 | Mar. 07, 1865 | J.C. Morgan | Shaping Key-Seats | key seating machines |
| 67,520 | Aug. 06, 1867 | D. Flynn | Shaping and Slotting Key-Seats | key seating machines |
| 132,239 | Oct. 15, 1872 | T.R. Bailey | Improvement in Key-Seat Cutting-Machines | key seating machines |
| 134,857 | Jan. 14, 1873 | J.H. Cranston | Slotting and Keyseat Machines | metal slotting machines |
| 221,480 | Nov. 11, 1879 | W.W. Trevor | Machine for Cutting Key-Seats | key seating machines |
| 289,060 | Nov. 27, 1883 | G.W. Bonds | Key Seat Cutting Machine | key seating machines |
| 303,178 | Aug. 05, 1884 | M. Morton | Combined Key Seat and Gear Cutting Machine | key seating machines |
| 309,066 | Dec. 09, 1884 | C.A. Lamphere | Key Seat Cutter | key seating machines |
| 325,695 | Sep. 08, 1885 | D.W. Porter | Key Seating Machine | key seating machines |
| 333,324 | Dec. 29, 1885 | M. Morton | Key Seat and Gear cutting Machine | key seating machines |
| 335,333 | Feb. 02, 1886 | A.M. Benson | Key Seat Cutter | key seating machines |
| 347,539 | Aug. 17, 1886 | J.S. Waterman | Key Seat Milling Machine | key seating machines |
| 388,946 | Sep. 04, 1888 | G. Benson | Machine for Cutting Key Seats | key seating machines |
| 390,306 | Oct. 02, 1888 | M. Morton | Portable Key Seat Cutter | key seating machines |
