US Trademark Classification US37 Construction and repair 建筑机器修理（037-2356） Class 37 建筑机器修理 037-2356 Chinese 建筑机器修理 English Repair of construction machines Term ID 037-2356 Class 37 Type Services Status Active · added, not since modified (A) Effective date 2021-08-12 Version 11-2021