US Trademark Classification US08 Hand tools and implements 老茧刀（008-193） Class 08 老茧刀 008-193 Chinese 老茧刀 English Callus cutters Spanish Cortadores de callos Term ID 008-193 Class 08 Type Goods Status Active · added, not since modified (A) Effective date 2001-06-01 Version 07-1997