US Trademark Classification US16 Paper and stationery 印章墨水（016-1362） Class 16 印章墨水 016-1362 Chinese 印章墨水 English Stamp inks Spanish Tintas para sellos Term ID 016-1362 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 2004-08-01 Version 08-2002