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 GB919126534Aexternal-prioritypatent/GB9126534D0/en
Priority claimed from GB919126536Aexternal-prioritypatent/GB9126536D0/en
Priority claimed from GB929224595Aexternal-prioritypatent/GB9224595D0/en
Application filed by Ici PlcfiledCriticalIci Plc
Publication of MX9207192ApublicationCriticalpatent/MX9207192A/en