US Trademark Classification US09 Scientific and electronic apparatus 光隔离器（009-7137） Class 09 光隔离器 009-7137 Chinese 光隔离器 English Opto-isolators Spanish Optoaisladores Term ID 009-7137 Class 09 Type Goods Status Active · added, not since modified (A) Effective date 2024-11-07 Version 12-2024