US Trademark Classification US16 Paper and stationery 圆珠笔笔头（016-3319） Class 16 圆珠笔笔头 016-3319 Chinese 圆珠笔笔头 English Tips for ball-point pens Term ID 016-3319 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 2021-07-22 Version 11-2021