| All Patents in class 408/197 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 266,091 | Oct. 17, 1882 | H.F. Buecker | Bung-Hole Reamer | tapered reamers |
| 327,641 | Oct. 06, 1885 | G.W. Abbott, G.S. Forrest | Countersink | countersinks |
| 414,357 | Nov. 05, 1889 | J.E. Woodbridge | Screw Cutting Tool | taps and dies |
| 492,733 | Feb. 28, 1893 | H. Meister | Chuck and Drill | drill press chucks |
| 602,449 | Apr. 19, 1898 | H. Hill | Boring Tool | |
| 610,158 | Aug. 30, 1898 | F.G. Echols | Tool for Cutting Screw Threads | tap and die holders |
| 624,439 | May 09, 1899 | A.L. Adams | Expansion-Bit | adjustable drill bits |
| 687,724 | Dec. 03, 1901 | J.F. Cadell | Boring-tool | drill bits |
| 879,309 | Feb. 18, 1908 | E. Pastore | Expansible bit | adjustable drill bits |
| 963,468 | Jul. 05, 1910 | E. Pastore | Expansible Bit | adjustable drill bits |
| 1,097,096 | May 19, 1914 | H. Hunteman, H.H. Heuerman | Wrench | screw adjust wrenches |
| 1,254,544 | Jan. 22, 1918 | W.W. Slayback | Gasket Cutter | |
| 1,924,735 | Aug. 29, 1933 | R.R. Finn, E.T. Bysshe | Means for Holding Chasers | tap and die holders |
| 1,988,378 | Jan. 15, 1935 | A.I. Dunn | Boring Head and Gauge for Cylinder Reboring Machines | boring heads |
| 2,310,992 | Feb. 16, 1943 | J.R. Proksa | Boring device | boring bars |
