1.
2.
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1983.
German | 29 DE |
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1972.
German | 29 DE |
5.
6.
7.
8.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1981.
English | 10B OMPI |
9.
10.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1987.
English | 10B OMPI |