On this day in 1790 the patent application for Method of Making Potash was granted. U.S. Patent No. X000001.
Patent of the Day: Method of Making Potash (first patent granted in U.S.)
July 31, 2015
|In Patent History
On this day in 1790 the patent application for Method of Making Potash was granted. U.S. Patent No. X000001.