US Trademark Classification US16 Paper and stationery 钢笔架（016-1716） Class 16 钢笔架 016-1716 Chinese 钢笔架 English Pen stands Spanish Portalápices Term ID 016-1716 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 2007-11-15 Version 09-2007