| All Patents in class 409/230 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 323,723 | Aug. 04, 1885 | E.H. Parks | Boring Machine | metalworking machines |
| 599,680 | Mar. 01, 1898 | J.C. Booth, G. Amborn, Jr. | Rotary cutter | cutters |
| 968,047 | Aug. 23, 1910 | C.L. Grohmann | Attachment for Milling Machines | milling machine accessories |
| 973,542 | Oct. 25, 1910 | A. Muehlmatt | Boring-head for lathes, milling-machines, and the like | boring heads |
| 1,036,250 | Aug. 20, 1912 | J.E. Johnson | Nurling Machine | |
| 1,669,423 | May 15, 1928 | C.H. Schmidgall | Boring tool | mortising machines |
| 1,923,820 | Aug. 22, 1933 | G. Gorton | Sliding Barrel Rotary Cutter Spindle Cutter Head | milling machines |
| 1,962,951 | Jun. 12, 1934 | M.C. Conwell | Tool Head | boring heads |
| 2,055,783 | Sep. 29, 1936 | A.F. Bennett | Machine Tool Structure | milling machines |
| 2,296,573 | Sep. 22, 1942 | J.H. Richards | Mounting and Drive Means for Milling Machines | metalworking machine mechanisms |
| 2,491,940 | Dec. 20, 1949 | C. Tree | Universal Milling Head | milling machine accessories |
| 2,712,273 | Jul. 05, 1955 | E.R. Rusnok | Mill head | vertical boring mills |
| 3,023,677 | Mar. 06, 1962 | A.S. Charlat | Machine Tool with Tool Carrier | milling machines |
| 4,427,325 | Jan. 24, 1984 | J.T. Currer, A.J. Schabowski, E.J. Kielma | Multiple Spindle Toolhead | metalworking machine mechanisms |
| 5,265,990 | Nov. 30, 1993 | W. Kuban | Short toolholder system | milling machine accessories |
