US Trademark Classification US09 Scientific and electronic apparatus 文档打印机用打印头（009-6294） Class 09 文档打印机用打印头 009-6294 Chinese 文档打印机用打印头 English Printheads for document printers Term ID 009-6294 Class 09 Type Goods Status Active · added, not since modified (A) Effective date 2022-07-21 Version 11-2022