| All Patents in class 408/231 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 85,021 | Dec. 15, 1868 | C. Murdock | Improvement in cylindrical saw | saw teeth |
| 167,165 | Aug. 31, 1875 | J.J. Grant | Improvement in die-stocks | tap wrenches and die stocks |
| 168,349 | Oct. 05, 1875 | J.C. Sherman | Improvement in screw-cutting dies | taps and dies |
| 260,314 | Jun. 27, 1882 | G.V. Sheffield, J.A. Parks | Drill Chuck | drill press chucks |
| 314,086 | Mar. 17, 1885 | H. Waas | Bung-cutter | hollow bits |
| 333,170 | Dec. 29, 1885 | G.F. Stearns | Method of auger manufacture | auger bits |
| 339,544 | Apr. 06, 1886 | S.P. Graham | Combined boring-tool and holder | metalworking twist drills |
| 720,554 | Feb. 17, 1903 | C. Benesh | Combined Wrench and Thread Cutter | alligator wrenches |
| 809,755 | Jan. 09, 1906 | W.F. Frenk, H.A. Smith | Tool | wrench combination tools |
| 828,859 | Aug. 14, 1906 | J. Merckens | Combined Wrench and Thread Retracing Tool | wrench combination tools |
| 1,063,074 | May 27, 1913 | J.B. Shirer | Reamer | tapered reamers |
| 1,264,370 | Apr. 30, 1918 | L. Groff | Drill | metalworking twist drills |
| 1,791,649 | Feb. 10, 1931 | W.W. Vosper | Pipe Reamer | pipe reamers |
| 1,830,179 | Nov. 03, 1931 | B.F. Stowell | Cutting Tool | milling machine cutters |
| 2,343,632 | Mar. 07, 1944 | H.F. Bakewell | Tap construction | taps and dies |
