| All Patents in class 408/241R |
Patents 16 -
30
of 51
      |
| Number | Date | Patentee | Title | Type |
| 995,178 | Jun. 13, 1911 | W. Potter | Boring-Machine alarm | drill depth stops |
| 1,035,143 | Aug. 13, 1912 | W.J. Bayrer | Clamping device | drill presses |
| 1,105,535 | Jul. 28, 1914 | J.O. Roberts | Screw Extractor | screw extractors |
| 1,170,890 | Feb. 08, 1916 | G. Gorton | Facing Lathe | metal lathes |
| 1,217,572 | Feb. 27, 1917 | C.C. Craley | Metal Working Apparatus | drill press accessories |
| 1,248,276 | Nov. 27, 1917 | F.J. Curtis | Machine-tool | horizontal boring mills |
| 1,305,872 | Jun. 03, 1919 | B. Bollie | Micrometer Drilling Gage | special purpose gauges |
| 1,376,791 | May 03, 1921 | F.W. Franklin, W.W. Baker | Self Centering Tool Holder | metalworking machine tool holders |
| 1,426,052 | Aug. 15, 1922 | J. Eckhard | Drill press | drill presses |
| 1,583,561 | May 04, 1926 | L.L. Schauer | Continuous Strap for Guarding Shafts | radial drill presses |
| 1,647,396 | Nov. 01, 1927 | A.G. Decker | Rotary tool with key pocket | drill chucks |
| 1,649,060 | Nov. 15, 1927 | A.G. Decker | Portable power-driven rotary tool with spindle latch and hand-operated chuck | handheld power drills |
| 1,699,870 | Jan. 22, 1929 | S.D. Black, A.G. Decker | Portable tool | handheld power tools |
| 1,788,163 | Jan. 06, 1931 | D.C. Klausmeyer | Index for Machine Tools | metalworking machine mechanisms |
| 1,798,234 | Mar. 31, 1931 | H.M. Toppin | Key holder for tools | handheld power tool accessories |
