1.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1987.
English | 10A OMPI |
2.
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1980.
German | 29 DE |
4.
5.
6.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1971.
German | 29 DE |
7.
8.