Navigation
Search
|
This US president is the only one to hold a patent
Tuesday February 18, 2025. 08:03 PM , from BoingBoing
United States patent number 6,469 is for 'buoying vessels over shoals.' Granted on May 22, 1849, the concept involves equipping large boats with 'india-rubber cloth, or another suitable waterproof fabric' on the hull as inflatable floats. If a boat became stranded, these buoys could be inflated with air to lift it in the water and set it free. — Read the rest
The post This US president is the only one to hold a patent appeared first on Boing Boing.
https://boingboing.net/2025/02/18/this-us-president-is-the-only-one-to-hold-a-patent.html
Related News |
25 sources
Current Date
Mar, Wed 26 - 07:48 CET
|