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
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Priority claimed from GB868621512Aexternal-prioritypatent/GB8621512D0/en
Priority claimed from GB878713871Aexternal-prioritypatent/GB8713871D0/en
Priority claimed from PCT/GB1987/000606external-prioritypatent/WO1988001670A1/en
Application filed by Alan Malcolm HarrisonfiledCriticalAlan Malcolm Harrison
Publication of NO881960D0publicationCriticalpatent/NO881960D0/en
Publication of NO881960LpublicationCriticalpatent/NO881960L/en