US Trademark Classification US21 Household and kitchen utensils 非贵金属餐巾环（021-1175） Class 21 非贵金属餐巾环 021-1175 Chinese 非贵金属餐巾环 English Napkin rings, not of precious metal Term ID 021-1175 Class 21 Type Goods Status Active · added, not since modified (A) Effective date 2007-11-15 Version 09-2007