2018-P $1 American Innovation Series Position B - Washington-Signed 1st Patent FS MS65 认证号36984154, PCGS号691730

Position B, American Innovation coin, Signed patent , Letter P. On July 31, 1790, he was granted the first U.S. patent, under the new U.S. patent statute just signed into law by President Washington on April 10, 1790.