1.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1990.
German | 29 DE |
2.
3.
4.
5.
6.
[Place of publication not identified] : [publisher not identified], 1972.
German | 23 CH |
7.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1982.
English | 10B OMPI |
8.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1986.
English | 10B OMPI |
9.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1982.
French | 10A OMPI |
10.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1972.
German | 28 DE |