| All Patents in class 408/67 |
Patents 16 -
30
of 34
      |
| Number | Date | Patentee | Title | Type |
| 669,473 | Mar. 05, 1901 | C.W. Blood | Boring-machine | drilling and boring |
| 678,729 | Jul. 16, 1901 | R.P. Gerlach | Sawing or cutting machine | cooper |
| 788,941 | May 02, 1905 | A.Y. Pearl | Auger | auger bits |
| 799,889 | Sep. 19, 1905 | F. Bryan | Portable hand-powered chain mortiser | portable timber mortisers |
| 881,856 | Mar. 10, 1908 | E. Hagstrom, G. Hagstrom, W. Hagstrom | Cup Attachment for Augers | drill accessories |
| 975,728 | Nov. 15, 1910 | O.A. Smith | Nut Feed for Tapping Machine | |
| 1,063,074 | May 27, 1913 | J.B. Shirer | Reamer | tapered reamers |
| 1,254,709 | Jan. 29, 1918 | O. Anderson, D. Levinger | Tapping Machine | |
| 1,442,149 | Jan. 16, 1923 | H.J. Hjorth | Drilling Machine | drill presses |
| 1,486,155 | Mar. 11, 1924 | A.M. Morgan | Bung-hole reamer | cooper |
| 1,682,558 | Aug. 28, 1928 | T.H. Doan, Jr. | Drilling machine | drill presses |
| 1,870,391 | Aug. 09, 1932 | E.B. Stimpson | Tubular rivet drilling machine | riveting machines |
| 1,917,831 | Jul. 11, 1933 | W.M. Fairbairn | Machine tool | tapping machines |
| 2,356,100 | Aug. 15, 1944 | H.C. Tangowski | Nut tapping machine | tapping machines |
| 2,375,408 | May 08, 1945 | G.H. Schurger, K.F. Gallimore | Machine Tool | horizontal boring mills |
