Extract from the Register of European Patents

EP Patent family: EP0420635
TypeType Equivalent
Publication No. DateType
EP0420635Global Dossier 27.05.1992A3
EP0420635 03.04.1991A2
Priority number Date
GB8921937 28.09.1989
TypeType Equivalent
Publication No. DateType
GB8921937D0 15.11.1989D0
Priority number Date
GB8921937 28.09.1989