| All Patents in class 144/92 |
Patents 31 -
45
of 49
      |
| Number | Date | Patentee | Title | Type |
| 458,581 | Sep. 01, 1891 | A.E. Johnson | Drill-press | drill presses |
| 461,253 | Oct. 13, 1891 | W.F. Barnes | Drilling-machine | drill presses |
| 461,951 | Oct. 27, 1891 | F.L. Eberhardt, U. Eberhardt | Column Drill Press | |
| 511,829 | Jan. 02, 1894 | G.E. Witherell | Turret Tool Machine | metal lathe accessories and attachments |
| 613,748 | Nov. 08, 1898 | J.A. Wilson | Drilling-machine | rail drilling machines |
| 668,695 | Feb. 26, 1901 | J.J. Stevens | Drill-vise and attachment for same | work holding |
| 702,217 | Jun. 10, 1902 | H.R. Jacobs | Drill | drill presses |
| 809,069 | Jan. 02, 1906 | J.L. Lovett | Doweling-machine | joint making machines |
| 941,506 | Nov. 30, 1909 | C.B. Elmore | Change Speed Mechanism | metalworking speed changing mechanisms |
| 966,217 | Aug. 02, 1910 | F.W. King | Electric drill | drill presses |
| 1,098,751 | Jun. 02, 1914 | A.E. Newton | Calipering device for the stopping mechanism of machine-tools | metal lathe accessories and attachments |
| 2,073,704 | Mar. 16, 1937 | W.G. Mitchell | Drill press | drill press speed change accessories |
| 2,211,050 | Aug. 13, 1940 | J.E. Boice | Drill press | motor mounts |
| 2,333,025 | Oct. 26, 1943 | G.J. Mayer | Angle Drill | drill accessories |
| 2,621,686 | Dec. 16, 1952 | J.E. Tompkins | Machine tool with motor-driven rotary and axially fed tools | radial arm saws |
