1.
München [Germany] : Mitteilungen der deutschen Patentanwälte, [1991]
German | 43 DE |
2.
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1982.
German | 28 DE |
4.
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1978.
German | 28 DE |