| All Patents in class 74/417 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 82,617 | Sep. 29, 1868 | P. Geiser | Improvement in horse-power | animal powered apparatus |
| 104,797 | Jun. 28, 1870 | W. Tucker | Improvement in boring-machines | portable timber mortisers |
| 109,114 | Nov. 08, 1870 | R.W. Crouse | Improvement in horse-powers | animal powered apparatus |
| 122,488 | Jan. 02, 1872 | S. Perry | Improvement in horse-power jacks | animal powered apparatus |
| 123,614 | Feb. 13, 1872 | T.C. Churchman | Improvement in horse-powers | animal powered apparatus |
| 155,111 | Sep. 15, 1874 | J.S. Schofield | Horse-Powers | animal powered apparatus |
| 225,682 | Mar. 23, 1880 | S.A. Bostwick | Combined drill and bit-stock | hand drills |
| 269,264 | Dec. 19, 1882 | H.C. Cloyd | Boring-machine | portable timber mortisers |
| 295,236 | Mar. 18, 1884 | W.H. Doane, G.W. Bugbee | Boring attachment for mortising machines | drilling and boring |
| 335,758 | Feb. 09, 1886 | A. John | Drilling Machine | mining apparatus |
| 365,850 | Jul. 05, 1887 | J. O'Neill | Drilling-apparatus | drilling and boring |
| 396,018 | Jan. 08, 1889 | C.M. Woolworth | Drilling-machine | portable metal boring and drilling machines |
| 548,083 | Oct. 15, 1895 | S.G. North | Gearing for ice-cream freezers | |
| 642,965 | Feb. 06, 1900 | L.M. Davis | Drilling-Machine | breast drills |
| 667,658 | Feb. 05, 1901 | H.B. Keiper | Ball-gearing | |
