US Trademark Classification US09 Scientific and electronic apparatus 流变仪（009-6551） Class 09 Rheometers 009-6551 流变仪 Chinese 流变仪 English Rheometers Spanish Reómetros Term ID 009-6551 Class 09 Type Goods Status Active · added, not since modified (A) Effective date 2023-07-20 Version 12-2023