US Trademark Classification US09 Scientific and electronic apparatus 乐器用放大器（009-6597） Class 09 乐器用放大器 009-6597 Chinese 乐器用放大器 English Amplifiers for musical instruments Term ID 009-6597 Class 09 Type Goods Status Active · added, not since modified (A) Effective date 2023-09-21 Version 12-2023