US Trademark Classification US44 Medical, beauty and agricultural services 高压空气治疗服务（044-3349） Class 44 高压空气治疗服务 044-3349 Chinese 高压空气治疗服务 English Hyperbaric air therapy services Term ID 044-3349 Class 44 Type Services Status Active · added, not since modified (A) Effective date 2026-09-03 Version 13-2026