| All Patents in class 409/201 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 58,076 | Sep. 18, 1866 | J.K. Dirner | Sloting Key Seats | key seating machines |
| 144,745 | Nov. 18, 1873 | H. Cottrell | Carving Machine | stone cutting machines |
| 1,313,365 | Aug. 19, 1919 | W.E. McLaughlin, G.W. Dixon, J.H. Wilson | Metal Working Machine | engine wheel lathes |
| RE20,893 | Oct. 25, 1938 | H.W. Bartholomew | Milling Machine | milling machines |
| 2,286,821 | Jun. 16, 1942 | L.D. Libby | Machine for Cutting Dies and the Like | milling machines |
| 2,379,405 | Jul. 03, 1945 | J.B. Armitage | Milling Machine | milling machines |
| 2,434,751 | Jan. 20, 1948 | J.B. Armitage, T. Trecker | Machine Tool | milling machines |
| 2,445,039 | Jul. 13, 1948 | J. Rusnok | Tool mounting bracket | vertical boring mills |
| 2,499,842 | Mar. 07, 1950 | J.B. Armitage | Milling Machine | milling machines |
| 2,675,744 | Apr. 20, 1954 | J.N. Petre | Machine for Forming Screw Driver Bits of the Fluted Type | screwdriver blades |
| 2,835,172 | May 20, 1958 | O.W. Barker, L.D. Libby, R.E. Saving | Rotary Head Milling Attachment | milling machine accessories |
| 4,988,244 | Jan. 29, 1991 | E.E. Kirkham, P.C. Sheldon | Six Axis Machine Tool | milling machines |
| 5,028,180 | Jul. 02, 1991 | E.E. Kirkham, P.C. Sheldon | Six-Axis Machine Tool | numerically controlled milling machines |
| 5,354,158 | Oct. 11, 1994 | B.P. Konkel, L.D. Ostby, E.E. Kirkham, P.C. Sheldon | Six Axis Machine Tool | milling machines |
| 5,388,935 | Feb. 14, 1995 | P.C. Sheldon | Six Axis Machine Tool | milling machines |
