Type | Equivalent | Publication No. | Date | Type | EP0420635 | Global Dossier | 27.05.1992 | A3 | EP0420635 | 03.04.1991 | A2 | Priority number | Date | GB8921937 | 28.09.1989 | Type | Equivalent | Publication No. | Date | Type | GB8921937D0 | 15.11.1989 | D0 | Priority number | Date | GB8921937 | 28.09.1989 |