US Trademark Classification US09 Scientific and electronic apparatus 运动防护头盔（009-6520） Class 09 运动防护头盔 009-6520 Chinese 运动防护头盔 English Protective sports helmets Term ID 009-6520 Class 09 Type Goods Status Active · added, not since modified (A) Effective date 2023-04-20 Version 12-2023