| All Patents in class 408/236 |
Patents 1 -
15
of 98
      |
| Number | Date | Patentee | Title | Type |
| RE3,574 | Aug. 03, 1869 | G.F. Rice | Improvement in boring-machine | drilling and boring |
| 97,908 | Dec. 14, 1869 | G.A. Gray, Jr. | Improved radial drilling-machine | drilling and boring |
| 103,157 | May 17, 1870 | J. Deming | Improvement in Spoke-Tenoning and Hub-Boring Machines | wheelwright |
| 110,530 | Dec. 27, 1870 | E.J. Worcester | Improvement in boring-machines | drilling and boring |
| 140,925 | Jul. 15, 1873 | J.C. Keller | Improvement in metal-drilling machines | drill presses |
| 142,416 | Sep. 02, 1873 | J.J. Sheridan | Improvement in Boring and Drilling Machine | wood drilling and boring |
| 157,373 | Dec. 01, 1874 | J.C. Chapman | Improvement in hand drilling-machines | drilling and boring |
| 207,640 | Sep. 03, 1878 | W.F. Barnes, J. Barnes | Improvement in scroll-sawing machines | human powered machines |
| 301,984 | Jul. 15, 1884 | H.D. Heiser | Wood-boring machine | multiple spindle drill presses |
| 362,618 | May 10, 1887 | A. Gordon | Drilling-machine | drill presses |
| 374,945 | Dec. 20, 1887 | F.B. Deming | Hub-Boring Machine | |
| 380,486 | Apr. 03, 1888 | S. Honinger | Drilling-machine | drilling and boring |
| 386,566 | Jul. 24, 1888 | W.D. Tripp | Hub boring machine | wheelwright |
| 421,517 | Feb. 18, 1890 | F.H. Richards | Drilling Machine | drill presses |
| 453,780 | Jun. 09, 1891 | W.H. Warren | Radial Drilling Machine | radial drill presses |
