| Patents for James Swan |
Patents 16 -
30
of 65
      |
| Number | Date | Patentee | Title | Type |
| 119,096 | Sep. 19, 1871 | J. Swan | Improvement in Hollow Augers | hollow bits |
| RE4,569 | Sep. 26, 1871 | J. Swan | Improvement in Machinery for Forming the Lips of Augers | making drills and augers |
| 132,608 | Oct. 29, 1872 | J. Swan | Hand-cranked chain mortiser for timbers | portable timber mortisers |
| 139,091 | May 20, 1873 | J. Swan | Improvement in Machines for Forming the Lips of Augers | |
| 141,401 | Jul. 29, 1873 | J. Swan | Improvement in Machines for Forming Auger-Bits | making drills and augers |
| RE5,624 | Oct. 21, 1873 | J. Swan | Machine for Upsetting Cook's Auger Bits | making drills and augers |
| 146,212 | Jan. 06, 1874 | J. Swan | Improvement in Dies for Forming Auger-Bits | making drills and augers |
| 170,413 | Nov. 23, 1875 | J. Swan | Improvement in Auger-Handles | auger handles |
| 208,862 | Oct. 08, 1878 | J. Swan | Improvement in the Manufacture of Auger-Bits | making drills and augers |
| 209,782 | Nov. 12, 1878 | J. Swan | Improvement in the Manufacture of Auger-Bits | making drills and augers |
| 210,220 | Nov. 26, 1878 | J. Swan | Improvement in boring machines | portable timber mortisers |
| 260,135 | Jun. 27, 1882 | J. Swan | Screw-Driver | screwdriver handles |
| 265,712 | Oct. 10, 1882 | J. Swan | Screw-Driver | screwdriver handles |
| 279,204 | Jun. 12, 1883 | J. Swan | Adjustable Auger | adjustable drill bits |
| 283,040 | Aug. 14, 1883 | J. Swan | Auger-Bit | auger bits |
