Basic Concept and Structure of the International Patent Classification (IPC), and Scope of Classification Places
文件编号 | WIPO/IP/HRE/03/4 |
相关会议 | WIPO/IP/HRE/03 |
发布日期 | 2003年4月1日 |
English | Basic Concept and Structure of the International Patent Classification (IPC), and Scope of Classification Places |