| All Patents in class 408/187 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 797 | Jun. 20, 1838 | J. Lindly | Machine for cutting screws on the ends of bedstead-rails | specialty woodworking machines |
| 50,328 | Oct. 10, 1865 | W.G. Bonwill | Improvement in Screw-Drivers | screwdriver blades |
| 50,677 | Oct. 31, 1865 | W.H. Bennett | Improvement in cutters for barrel-heads | barrel making |
| 101,466 | Apr. 05, 1870 | J.E. Hunter | Improved hand drilling-machine | human powered machines |
| 108,933 | Nov. 01, 1870 | Z.S. Ogden | Brace for cutting screw threads | braces |
| 144,583 | Nov. 11, 1873 | J. Wheelock | Improvement in Tool-Holders and Cutter-Heads for Boring-Bars | portable metal boring and drilling machines |
| 146,056 | Dec. 30, 1873 | L. Feely | Bit-stock | brace chucks |
| 358,731 | Mar. 01, 1887 | H. Clark | Countersink | countersinks |
| 1,220,348 | Mar. 27, 1917 | A.B. Landis | Cutter-head | metal threading machines |
| 1,721,129 | Jul. 16, 1929 | G.M. Mehl | Adjusting Means for Threading Dies | tap and die holders |
| 2,483,152 | Sep. 27, 1949 | G. Reisinger | Boring Tool Holder | drilling and boring tool holders |
| 2,620,689 | Dec. 09, 1952 | S.A. Cogsdill | Deburring Tool Having a Slender Body for Projecting Into an Aperture | deburring tools |
| 2,716,360 | Aug. 30, 1955 | W.D. Walters, S.A. Cogsdill | Deburring Tool | deburring tools |
| 3,021,733 | Feb. 20, 1962 | S.A. Cogsdill | Cutting Tool | boring heads |
| 3,132,543 | May 12, 1964 | S.A. Cogsdill | Deburring Tool | deburring tools |
