| All Patents in class 408/241R |
Patents 1 -
15
of 51
      |
| Number | Date | Patentee | Title | Type |
| 3,645 | Jul. 01, 1844 | P. Baylor | Method of securing boring-machines to the article to be bored | drilling and boring |
| 6,484 | May 29, 1849 | W.H. Willcox | Boring-machine | shipwright |
| 6,909 | Nov. 27, 1849 | J.H. Aldrich | Improvement in boring-machines | drilling and boring |
| 38,898 | Jun. 16, 1863 | G.W. Gould | Improved power mortising-machine | mortising machines |
| 66,672 | Jul. 16, 1867 | P. Blaisdell | Improvement in upright drills | drill presses |
| 92,983 | Jul. 27, 1869 | W.C. Marr | Improvement in combined drill and saw-gummer | saw gummers |
| 114,229 | Apr. 25, 1871 | W.H. Thorne | Improvement in Portable Drilling-Machines | drill presses |
| 215,744 | May 27, 1879 | W. Heyn | Auger Bit with Detachable Tip | auger bits |
| 285,726 | Sep. 25, 1883 | W.F. Barnes, J. Barnes | Machinist drill press | drill presses |
| 310,563 | Jan. 13, 1885 | A.S. Davis | Scroll-sawing machine | scrollsaws |
| 461,951 | Oct. 27, 1891 | F.L. Eberhardt, U. Eberhardt | Column Drill Press | |
| 524,906 | Aug. 21, 1894 | A. McDougall | Combination Screw-Driver, Auger, and Countersink | |
| 533,407 | Jan. 29, 1895 | E.L. Barton | Thread-cutting brace | |
| 586,419 | Jul. 13, 1897 | A. Collet | Tap for Cutting Wood Threads | drill bits |
| 639,262 | Dec. 19, 1899 | A.S. Smith, J. Mills | Metal Drill | radial drill presses |
