US Trademark Classification US02 Paints and varnishes 绘画用钽粉（002-593） Class 02 绘画用钽粉 002-593 Chinese 绘画用钽粉 English Tantalum powder for painting Term ID 002-593 Class 02 Type Goods Status Active · added, not since modified (A) Effective date 2021-02-11 Version 11-2021