| All Patents in class 408/238 |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 12,484 | Mar. 06, 1855 | G.H. Hubbard | Auger-Handle Fastening | auger handles |
| 68,071 | Aug. 27, 1867 | D.F. Hartford | Improved Bow-Drill Stock | hand drills |
| 146,056 | Dec. 30, 1873 | L. Feely | Bit-stock | brace chucks |
| 336,362 | Feb. 16, 1886 | J. Walker | Tool Holder | metal lathe accessories and attachments |
| 354,085 | Dec. 14, 1886 | R.J. Baker | Drill Stock | ratchet drills |
| 443,502 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 456,300 | Jul. 21, 1891 | E. Dawson | Screw-Driver | ratcheting screwdrivers |
| 597,533 | Jan. 18, 1898 | H. Wiedmann | Tap Wrench | tap wrenches and die stocks |
| 617,462 | Jan. 10, 1899 | W.W. Davis | Combination tool | combination tools |
| 630,876 | Aug. 15, 1899 | W.C. Force | Tool Holder | lathe tool holders and tool posts |
| 868,812 | Oct. 22, 1907 | L. Ruegg | Bit holder | |
| 1,002,310 | Sep. 05, 1911 | W.L. Procunier | Safety-chuck | drill press chucks |
| 1,160,042 | Nov. 09, 1915 | J.M. Carpenter | Tool Holder | tool holders |
| 1,502,528 | Jul. 22, 1924 | L. Reulbach | Extensible Tool Holder | drilling and boring tool holders |
| 1,746,381 | Feb. 11, 1930 | E.E. Davis | Boring tool | boring heads |
