Basic Concept and Structure of the International Patent Classification (IPC), and Scope of Classification Places
| Индекс документа | WIPO/IP/HRE/03/4 |
| Мероприятия по теме | WIPO/IP/HRE/03 |
| Дата публикации | 1 апреля 2003 г. |
| English | Basic Concept and Structure of the International Patent Classification (IPC), and Scope of Classification Places |