US Trademark Classification US02 Paints and varnishes 绘画用铌粉（002-595） Class 02 绘画用铌粉 002-595 Chinese 绘画用铌粉 English Niobium powder for painting Term ID 002-595 Class 02 Type Goods Status Active · added, not since modified (A) Effective date 2021-02-11 Version 11-2021