| All Patents in class 144/92 |
Patents 16 -
30
of 49
      |
| Number | Date | Patentee | Title | Type |
| 251,686 | Jan. 03, 1882 | B.F. Allen | Boring-machine | wood drilling and boring |
| 259,138 | Jun. 06, 1882 | E.A. Hare | Upright drill | drill presses |
| 303,073 | Aug. 05, 1884 | H. Thompson | Drilling-machine | drill presses |
| 319,502 | Jun. 09, 1885 | G.G. Morrison | Combined Drilling and Boring Machine | drilling and boring |
| 319,952 | Jun. 16, 1885 | G. Burnham, A. Goddard | Drilling machine | drill presses |
| 324,688 | Aug. 18, 1885 | C.G. Harstrom, A.K. Westerdahl | Drilling-machine | drill presses |
| 324,759 | Aug. 18, 1885 | S. Elliott | Drilling-machine | drill presses |
| 357,807 | Feb. 15, 1887 | D.S. Henrie, E. Allen | Drilling-machine | drill presses |
| 370,633 | Sep. 27, 1887 | B.G. Luther | Tilting table for wood-working machines | woodworking machine mechanisms |
| 375,887 | Jan. 03, 1888 | J. McIntyre | Clapboard-machine | clapboard machines |
| 392,960 | Nov. 13, 1888 | H. Longwell | Boring-machine | drilling and boring |
| 395,592 | Jan. 01, 1889 | M. Schwarzler | Feed attachment for drilling-machines | drilling and boring |
| 427,037 | May 06, 1890 | J.T. Bright | Cob Pipe Turning and Boring Lathe | pipe making machines |
| 431,107 | Jul. 01, 1890 | J.T. Cowley | Apparatus for Drilling | drill press accessories |
| 448,195 | Mar. 17, 1891 | E.F. Barnes | Boring attachment for sawing machine | drilling and boring |
