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