US Trademark Classification US01 Chemicals Dianisidine Class 01 Dianisidine 001-377 联茴香胺 Chinese 联茴香胺 English Dianisidine Spanish Dianisidina Term ID 001-377 Class 01 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002