| All Patents in class 173/145 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 282,632 | Aug. 07, 1883 | M. Hardsocg | Mining Machine | mining apparatus |
| 369,120 | Aug. 30, 1887 | J. Moffet | Portable drilling-machine | portable metal boring and drilling machines |
| 434,576 | Aug. 19, 1890 | H.B. Wyman | Drilling Machine | stone boring and drilling machines |
| 492,118 | Feb. 21, 1893 | J.T. Snyder | Drilling machine (for mining coal, but brace configuration) | |
| 613,748 | Nov. 08, 1898 | J.A. Wilson | Drilling-machine | rail drilling machines |
| 643,083 | Feb. 06, 1900 | M.C. Bullock, deceased (Estate of), M.A. Bullock, Executrix | Thrust Register for Drilling Machines | drill press accessories |
| 1,285,712 | Nov. 26, 1918 | H.R. Hughes | Horizontal Drilling Machine | |
| 1,977,061 | Oct. 16, 1934 | J.G. Hey | Drilling machine and the like | drill presses |
| 1,987,675 | Jan. 15, 1935 | K.F. Gallimore | Spindle Feed and Drive Mechanism for Machine Tools | metalworking power transmission |
| 2,920,507 | Jan. 12, 1960 | P.H. Lange | Spindle-Moving Mechanism | |
