US Trademark Classification US16 Paper and stationery 订书机座（016-1121） Class 16 订书机座 016-1121 Chinese 订书机座 English Stapler holders Spanish Portagrapadoras Term ID 016-1121 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002