| All Patents in class 408/131 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 297,383 | Apr. 22, 1884 | H. Hobbs, E.F. Gordon | Suspended drilling-machine | radial drill presses |
| 441,509 | Nov. 25, 1890 | F. Schoff | Drill-support | portable metal drilling machines |
| 472,546 | Apr. 12, 1892 | W.D. McNaull | Radial-drilling machine | radial drill presses |
| 506,342 | Oct. 10, 1893 | M.F. Smith | Metal Cutting and Working Machine | |
| 536,815 | Apr. 02, 1895 | W. Murchey | Nipple Cutting Machine | pipe cutting machines |
| 679,672 | Jul. 30, 1901 | W. Herman | Drilling-machine | radial drill presses |
| 1,009,201 | Nov. 21, 1911 | A.C. Vick | Mortising machine | mortising machines |
| 1,032,409 | Jul. 16, 1912 | M. Himoff | Radial drill-press | radial drill presses |
| 1,338,752 | May 04, 1920 | A.M. Sosa | Drilling Machinery | radial drill presses |
| 1,413,790 | Apr. 25, 1922 | A.M. Sosa, H.W. Schatz | Drilling Machine | radial drill presses |
| 1,595,962 | Aug. 10, 1926 | H. Dreses | Radial drilling machine | radial drill presses |
| 1,660,385 | Feb. 28, 1928 | D.C. Klausmeyer | Strap Guarded Radial Dill | drill press accessories |
| 1,706,824 | Mar. 26, 1929 | S.M. Ratliff, H.W. Schatz | Radial Drilling Machine | radial drill presses |
| 1,724,430 | Aug. 13, 1929 | W.G. Hoelscher, A.M. Sosa | Drilling Machinery | radial drill presses |
| 1,727,606 | Sep. 10, 1929 | H.M. Norris, D.C. Klausmeyer | Constant Drive Radial Drill | radial drill presses |
