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| Patents for Fred. A. Rugg | |||||
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| Number | Date | Patentee | Title | Type | |
| RE4,569 | Sep. 26, 1871 | J. Swan | Improvement in Machinery for Forming the Lips of Augers | making drills and augers | |
| RE5,624 | Oct. 21, 1873 | J. Swan | Machine for Upsetting Cook's Auger Bits | making drills and augers | |
| 208,862 | Oct. 08, 1878 | J. Swan | Improvement in the Manufacture of Auger-Bits | making drills and augers | |