x-patents:x-6428
Table of Contents
Patent X-6428: 1831-03-21, Wood auger
| X Number | Date | Inventor | City | Title | Status |
|---|---|---|---|---|---|
| X-6428 | 1831-03-21 | George Shetter | York, PA | Wood auger | Recovered |
Comments
This is a double-bit auger, as compared to the inventor's earlier single-bit design, which was patented 1829-09-10 but not restored after the 1836 patent-office fire.
Information Sources
(To be filled in.)
External links
x-patents/x-6428.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1