| All Patents of Type: portable metal boring and drilling machines |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 67,284 | Jul. 30, 1867 | A.J. Fullam | Improved drilling apparatus | portable metal boring and drilling machines |
| 108,310 | Oct. 11, 1870 | J. Wheelock | Improvement in Boring Apparatus | portable metal boring and drilling machines |
| 144,583 | Nov. 11, 1873 | J. Wheelock | Improvement in Tool-Holders and Cutter-Heads for Boring-Bars | portable metal boring and drilling machines |
| GB-187,801,232 | Jun. 01, 1878 | U. Mead | Belt and pulley combination for portable drills | portable metal boring and drilling machines |
| GB-188,202,409 | Jan. 01, 1883 | U. Higginson | Drilling or boring metals | portable metal boring and drilling machines |
| 306,375 | Oct. 14, 1884 | J.F. Allen | Portable drilling-machine | portable metal boring and drilling machines |
| 315,318 | Apr. 07, 1885 | J. Moffet | Reversible engine | air motors and turbines |
| DE-43,152 | Aug. 30, 1887 | J. Moffet | Portable drill | portable metal boring and drilling machines |
| 369,120 | Aug. 30, 1887 | J. Moffet | Portable drilling-machine | portable metal boring and drilling machines |
| 396,018 | Jan. 08, 1889 | C.M. Woolworth | Drilling-machine | portable metal boring and drilling machines |
| 408,269 | Aug. 06, 1889 | I.E. Storey | Electric drill | portable metal boring and drilling machines |
| 440,491 | Nov. 11, 1890 | J. Moffet | Reversible engine | portable metal boring and drilling machines |
| 506,954 | Oct. 17, 1893 | J.G. Timolat, C. Jacobson | Portable drill | portable metal boring and drilling machines |
| 4,842,452 | Jun. 27, 1989 | D.S. Strait | Surfacing Machine | portable metal boring and drilling machines |
| 4,990,037 | Feb. 05, 1991 | D.S. Strait | Portable Boring Machine | portable metal boring and drilling machines |
