1.
2.
[Place of publication not identified] : [publisher not identified], 1963.
Dutch | G 941 BOC.B |
3.
4.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1972.
Dutch | 10A OMPI |
5.
Paris [France] : Gutmann & Plasseraud, 1985.
French | G 941 PLA.B |
6.
[Place of publication not identified] : [publisher not identified], 1970.
Dutch | G 941 PAR.A |
7.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1963.
English | 10B OMPI |
8.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1963.
Dutch | 10A OMPI |