US Trademark Classification US01 Chemicals 缩氨基脲（001-746） Class 01 缩氨基脲 001-746 Chinese 缩氨基脲 English Semicarbazone Spanish Semicarbazona Term ID 001-746 Class 01 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002