US Trademark Classification US37 Construction and repair 邮件辐照服务（037-2431） Class 37 邮件辐照服务 037-2431 Chinese 邮件辐照服务 English Mail irradiation services Term ID 037-2431 Class 37 Type Services Status Active · added, not since modified (A) Effective date 2022-01-01 Version 11-2022