| Patents for E. H. Knight |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 68,012 | Aug. 20, 1867 | J. Swan | Manufacture of Single Twist Augers | making drills and augers |
| 76,955 | Apr. 21, 1868 | J. Swan | Improved Machine for Making Auger-Bits | making drills and augers |
| 76,956 | Apr. 21, 1868 | J. Swan | Improvement in auger-handles | hand drills |
| 78,769 | Jun. 09, 1868 | J. Swan | Machine for Upsetting Cook's Bits | making drills and augers |
| 96,847 | Nov. 16, 1869 | J. Swan | Die for Forming Cook's Bits | making drills and augers |
| 572,446 | Dec. 01, 1896 | J.M. Proctor | Gate Or Door Hook | |
