Home / Standards / GB/T 21373 GB/T 21373 Active Intellectual property documentation and information—Classification and codes 知识产权文献与信息 分类及代码 Standard Type GBT ICS 01.140.20 CCS A14 Status 现行 Issue Date 2023-03-17 Implementation 2023-10-01 Responsible Dept 国家知识产权局 Drafting Unit 国家知识产权局