1.
[Place of publication not identified] : [publisher not identified], 1999.
English | 19 US |
2.
London [England] : Euromoney Institutional Investor PLC, 1999.
Danish | 72 GB |
3.
4.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1972.
French | 10A OMPI |
5.
[Place of publication not identified] : [publisher not identified], 1990.
English | 29 US |
6.
[Heidelberg, Germany] : [Springer], 1974.
Danish | 34 DE |
7.
8.
[Heidelberg, Germany] : [Springer], 1987.
English | 34 DE |
9.
10.
München [Germany] : Mitteilungen der deutschen Patentanwälte, 1973.
German | 43 DE |