Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NZ22013087Aexternal-prioritypatent/NZ220130A/en
Application filed by Hickson Int PlcfiledCriticalHickson Int Plc
Priority to NZ22181087ApriorityCriticalpatent/NZ221810A/en
Priority to CA000565164Aprioritypatent/CA1329311C/en
Priority to FI881976Aprioritypatent/FI881976A/en
Priority to AU15201/88Aprioritypatent/AU614958B2/en
Priority to EP88303860Aprioritypatent/EP0289317B1/en
Publication of NZ221810ApublicationCriticalpatent/NZ221810A/en
Priority to US07/652,317prioritypatent/US5129946A/en