| All Patents in class 408/161 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 109,154 | Nov. 08, 1870 | D.F. Sutton | Improvement in Countersinks | countersinks |
| 294,484 | Mar. 04, 1884 | C.H. Malmedie | Reamer | reamers |
| 909,434 | Jan. 12, 1909 | C.H. Malmedie | Reamer | reamers |
| 1,713,646 | May 21, 1929 | G.H. Deyo | Boring Head | boring heads |
| 1,793,484 | Feb. 24, 1931 | N.L. Huff | Ruff Reamer | |
| 2,605,655 | Aug. 05, 1952 | E.J. Kaiser | Boring Cutter | boring heads |
| 2,716,360 | Aug. 30, 1955 | W.D. Walters, S.A. Cogsdill | Deburring Tool | deburring tools |
| 2,846,904 | Aug. 12, 1958 | W.E. Dow | Boring Bar | multiple spindle lathes |
| 4,162,867 | Jul. 31, 1979 | D.W. Barton, R.A. Rhinefrank, D.J. Calcaterra | Dual Cutter Boring Head | boring heads |
