US Trademark Classification US28 Toys, games and sporting goods 美式壁球（028-435） Class 28 美式壁球 028-435 Chinese 美式壁球 English Racket balls Spanish Pelotas de raqueta Term ID 028-435 Class 28 Type Goods Status Active · added, not since modified (A) Effective date 1991-04-02 Version 07-1997