USPS获得区块链投票专利

2020-08-17 06:05:23

完整文档：

https://pdfaiw.uspto.gov/.aiw?PageNum=0&docid=20200258338&IDKey=7A4F4EA40D1F&HomeUrl=http%3A%2F%2Fappft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO1%2526Sect2%3DHITOFF%2526d%3DPG01%2526p%3D1%2526u%3D%2Fnetahtml%2FPTO%2Fsrchnum.html%2526r%3D1%2526f%3DG%2526l%3D50%2526s1%3D20200258338.PGNR.%2526OS%3D%2526RS%3D