US Trademark Classification US07 Machinery 楼梯升降机（007-1094） Class 07 楼梯升降机 007-1094 Chinese 楼梯升降机 English Stair lifts Spanish salvaescaleras Term ID 007-1094 Class 07 Type Goods Status Active · added, not since modified (A) Effective date 2001-06-01 Version 07-1997