x-patents:x-9786
Table of Contents
Patent X-9786: 1836-06-28, Compass Needle
| X Number | Date | Inventor | City | Title | Status |
|---|---|---|---|---|---|
| X-9786 | 1836-06-28 | Nathan Bassett | Wilmington, DE | Compass Needle | Recovered |
Comments
This design for a compass needle uses a semicircular counterweight to allow the needle to be accurately balanced.
Information Sources
(To be filled in.)
External links
x-patents/x-9786.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1