| All Patents in class 173/141 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 267,912 | Nov. 21, 1882 | R.M. McDermott | Drilling Machine | drill presses |
| 306,375 | Oct. 14, 1884 | J.F. Allen | Portable drilling-machine | portable metal boring and drilling machines |
| 408,269 | Aug. 06, 1889 | I.E. Storey | Electric drill | portable metal boring and drilling machines |
| 422,569 | Mar. 04, 1890 | W.E. Canedy | Drilling-machine | blacksmith |
| 661,418 | Nov. 06, 1900 | S. McClellan | Universal brace and drill | |
| 809,394 | Jan. 09, 1906 | A. Pedersen | Electrically-operated portable drill | handheld power tools |
| 880,140 | Feb. 25, 1908 | B. Hastings | Drilling Machine | stone boring and drilling machines |
| 993,352 | May 30, 1911 | W.O. Duntley | Electric drill | handheld power drills |
| 2,260,624 | Oct. 28, 1941 | A.S. Johann | Sheet Metal Shaper | sheet metal |
| 2,947,204 | Aug. 02, 1960 | J.F. Wagner, A.J. Pine | Universal Power Tool Holder for Use With Expansible Self-Feeding Struts | tool holders |
