1.
2.
Buffalo, New York : The Patent and Trademark Office Society, 1980.
English | 47 US |
3.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1981.
English | 3 SE |
4.
[Place of publication not identified] : [publisher not identified], 1993.
German | 29 DE |
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1987.
German | 28 DE |
6.
[Place of publication not identified] : [publisher not identified], 1978.
English | G 941 EPO.AB |
7.
8.
9.
10.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1974.
German | 28 DE |