US Trademark Classification US20 Furniture 宠物坡道（020-638） Class 20 宠物坡道 020-638 Chinese 宠物坡道 English Pet ramps Spanish Rampas para mascotas Term ID 020-638 Class 20 Type Goods Status Active · added, not since modified (A) Effective date 2005-05-01 Version 08-2002