US Trademark Classification US01 Chemicals 四氯化锆（001-2222） Class 01 四氯化锆 001-2222 Chinese 四氯化锆 English Zirconium tetrachloride Term ID 001-2222 Class 01 Type Goods Status Active · added, not since modified (A) Effective date 2020-03-12 Version 11-2020