·Patents
一种基于区块链的营销标签真实性验证方法及系统，专利申请号201910344350.2
Release time:2020-05-02 Hits:
Application Date: 2020-05-02
Publication Date: 2020-05-02
Authorization Date: 2020-05-02
Application Date: 2020-05-02
Publication Date: 2020-05-02
Authorization Date: 2020-05-02