1.
[Place of publication not identified] : [European Patent Office], 2010.
English | 138 GB |
2.
3.
Vienna [Austria] : European Patent Office (EPO), 1992.
English | G 941 EPO.C 1992 |
4.
[Place of publication not identified] : [European Patent Office], [1999]
Italian | GB 138 2007 no 25 |
5.
[Place of publication not identified] : [European Patent Office], 2008.
English | GB 138 2008 No 28 |
6.
7.
München [Germany] : Wila-Verlag, 1991.
Sixth edition.
English | G 941 CON(6) (E) |
8.
9.
10.
[Place of publication not identified] : [European Patent Office], 2007.
English | GB 138 October/November 2007 No 26 |