| All Patents in class 408/134 |
Patents 1 -
15
of 38
      |
| Number | Date | Patentee | Title | Type |
| 489,317 | Jan. 03, 1893 | A. Mill | Tapping attachment for drills | tapping machines |
| 609,567 | Aug. 23, 1898 | J. Yerkes | Dowel-hole-boring machine | drilling and boring |
| 688,653 | Dec. 10, 1901 | F. Lambert | Tool-operating machine | drill presses |
| 742,291 | Oct. 27, 1903 | L.H. Colburn | Upright Tapping and Boring Machine | drill presses |
| 772,568 | Oct. 18, 1904 | H.N. Hinckley | Drill-press | drill presses |
| 816,322 | Mar. 27, 1906 | J.H. Haskins | Bolt Threading Machine | metal threading machines |
| 857,538 | Jun. 18, 1907 | L.E. Rice | Automatic drilling-machine | drill presses |
| 973,843 | Oct. 25, 1910 | J.S. Barnes | Drilling-machine | drill presses |
| 1,017,635 | Feb. 13, 1912 | L.H. Colburn | Automatic Tripping Device for the Feed Mechanism of Machine Tools | metalworking machine mechanisms |
| 1,063,665 | Jun. 03, 1913 | H. Dreses, E.J. Spaeth | Automatic tool stop | drill presses |
| 1,103,783 | Jul. 14, 1914 | G.O. Leopold | Drill | drill presses |
| 1,216,689 | Feb. 20, 1917 | J.G. Hey | Feed mechanism for drilling-machines | drill presses |
| 1,250,362 | Dec. 18, 1917 | W.L. Schellenbach | Metal-boring machine | vertical boring mills |
| 1,307,831 | Jun. 24, 1919 | A.C. Pletz | Drilling and tapping machine | drill presses |
| 1,351,970 | Sep. 07, 1920 | H.W. Schatz, A.E. Robinson, A.M. Sosa | Feeding Mechanism for Metal Working Machinery | metalworking machine mechanisms |
