| All Patents in class 408/134 |
Patents 1 -
10
of 38
      |
| Picture | Number | Date | Patentee | Title |
 | 489,317 | Jan. 03, 1893 | A. Mill | Tapping attachment for drills |
 | 609,567 | Aug. 23, 1898 | J. Yerkes | Dowel-hole-boring machine |
 | 688,653 | Dec. 10, 1901 | F. Lambert | Tool-operating machine |
| | 742,291 | Oct. 27, 1903 | L.H. Colburn | Upright Tapping and Boring Machine |
 | 772,568 | Oct. 18, 1904 | H.N. Hinckley | Drill-press |
| | 816,322 | Mar. 27, 1906 | J.H. Haskins | Bolt Threading Machine |
 | 857,538 | Jun. 18, 1907 | L.E. Rice | Automatic drilling-machine |
 | 973,843 | Oct. 25, 1910 | J.S. Barnes | Drilling-machine |
| | 1,017,635 | Feb. 13, 1912 | L.H. Colburn | Automatic Tripping Device for the Feed Mechanism of Machine Tools |
 | 1,063,665 | Jun. 03, 1913 | H. Dreses, E.J. Spaeth | Automatic tool stop |
