| All Patents in class 408/236 |
Patents 16 -
30
of 97
      |
| Number | Date | Patentee | Title | Type |
| 472,546 | Apr. 12, 1892 | W.D. McNaull | Radial-drilling machine | radial drill presses |
| 515,988 | Mar. 06, 1894 | C.H. Baush | Drilling-machine | radial drill presses |
| 612,946 | Oct. 25, 1898 | W.E. Hotchkiss | Support for drilling-machines | drill presses |
| 698,242 | Apr. 22, 1902 | S.A. Baker | Drilling-machine | multiple spindle drill presses |
| 883,481 | Mar. 31, 1908 | G.T. Reiss | Multiple Drill | multiple spindle drill presses |
| 913,172 | Feb. 23, 1909 | J.C. McGregor, J.G. Smith | Breast-drill | breast drills |
| 917,048 | Apr. 06, 1909 | J.S. Glenn | Drill brace | drill presses |
| 1,005,187 | Oct. 10, 1911 | K.L. Frazer | Drilling-machine | specialty woodworking machines |
| 1,032,409 | Jul. 16, 1912 | M. Himoff | Radial drill-press | radial drill presses |
| 1,070,815 | Aug. 19, 1913 | D.C. Klausmeyer | Clamping Mechanism | metalworking machine mechanisms |
| 1,089,442 | Mar. 10, 1914 | W.T. Sears | Radial drill | radial drill presses |
| 1,171,123 | Feb. 08, 1916 | M. Himoff | Drill-press | drill presses |
| 1,210,450 | Jan. 02, 1917 | W.R. Fox | Attachment for multiple drills | multiple spindle drill presses |
| 1,333,743 | Mar. 16, 1920 | P.G. Weiss | Portable drill | drill presses |
| 1,461,666 | Jul. 10, 1923 | J.E. Larsh | Clamping mechanism for radial drilling machines | radial drill presses |
