On Apr. 10, 1790, the United States Patent system was established, appropriating necessary measures to satisfy inventors and scientists. The first patent was to Samuel Hopkins for an improvement in the making of pot ash. The first patents were originally signed by George Washington himself.
Today In History- April 10
United States Patent system established.
Stories about Today In History- April 10
Patent system established by U.S. government.
- Philadelphia, Pennsylvania
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