Table of Similar Goods and Services Class 09 Scientific and electronic apparatus 0910 Measuring instruments and meters, laboratory apparatus, electrical measuring instruments, scientific instruments 便携式超细粉尘检测仪（090853） Class 09 Similar group 0910（一） 便携式超细粉尘检测仪 090853 Chinese 便携式超细粉尘检测仪 English portable ultrafine dust meters Spanish medidores de polvo ultrafino portátiles Item No. 090853 Class 09 Similar group 0910（一） Version 区分表 2026 文本（基于 NCL 13-2026，2026-01-01 起施行）