EU Trademark Classification EU42 Scientific and technological services 技术研究报告书的编制（71696） Class 42 Preparation of technical studies 71696 技术研究报告书的编制 Chinese 技术研究报告书的编制 English Preparation of technical studies Site ref. 71696 Class 42 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)