| All Patents in class 81/34 |
Patents 16 -
30
of 63
      |
| Number | Date | Patentee | Title | Type |
| 307,710 | Nov. 04, 1884 | F.J. Dubrul | Drilling-machine | drill presses |
| 319,430 | Jun. 02, 1885 | C. Snedekum | brace or drill with alternating rotation | |
| 356,898 | Feb. 01, 1887 | A. Shepard | Hand-drill | breast drills |
| 491,624 | Feb. 14, 1893 | W.H. Wilkinson | Breast-drill | eggbeater drills |
| 503,569 | Aug. 22, 1893 | G.W. Agin | Screw-driver | screwdrivers |
| 514,660 | Feb. 13, 1894 | S. McClellan | Brace for boring holes, etc. | eggbeater drills |
| 544,411 | Aug. 13, 1895 | H.D. Lanfair | Drill chuck | |
| 557,328 | Mar. 31, 1896 | A.D. Goodell, H.E. Goodell | Breast-drill | breast drills |
| 571,267 | Nov. 10, 1896 | J.W. Gray | Bit-stock | eggbeater drills |
| 647,311 | Apr. 10, 1900 | G.J. Spahn, W.T. Maxwell | Boring implement | hand drills |
| 661,418 | Nov. 06, 1900 | S. McClellan | Universal brace and drill | |
| 683,794 | Oct. 01, 1901 | H. Politsch | Angle bit-stock | |
| 686,540 | Nov. 12, 1901 | J.B. Salo | Nail-puller | nail extractors |
| 719,050 | Jan. 27, 1903 | J.H. Rusby | Extensible or extension angle-brace | hand drills |
| 755,078 | Mar. 22, 1904 | D.E. Trumbull | Bit-stock | |
