US Trademark Classification US16 Paper and stationery 小黑板（016-1113） Class 16 小黑板 016-1113 Chinese 小黑板 English Small blackboards Spanish Pizarras pequeñas Term ID 016-1113 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002