1.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1991.
German | 28 DE |
|
2.
|
[Hong Kong, China] : [China Patents & Trademarks Publications], 1991.
English | 7 CN |
|
3.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1991.
German | 28 DE |
|