1.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1972.
German | 28 DE |
2.
3.
4.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1985.
English | 7 CN |
5.
Tokyo [Japan] : International Association for the Protection of Intellectual Property (AIPPI), 1980.
English | 2 JP |
6.
7.
Tokyo [Japan] : International Association for the Protection of Intellectual Property (AIPPI), 1978.
English | 2 JP |
8.
9.
10.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1974.
German | 28 DE |