1.
2.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | 28 DE |
3.
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | 29 DE |
5.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1991.
English | 10B OMPI |