1.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1931.
French | 10A OMPI |
2.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1971.
German | 28 DE |
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1976.
German | 28 DE |