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 GB878716568Aexternal-prioritypatent/GB8716568D0/en
Priority claimed from GB878722963Aexternal-prioritypatent/GB8722963D0/en
Priority claimed from GB888808861Aexternal-prioritypatent/GB8808861D0/en
Application filed by Universal Shield LtdfiledCriticalUniversal Shield Ltd
Priority claimed from PCT/GB1988/000562external-prioritypatent/WO1989000385A1/en
Application grantedgrantedCritical
Publication of ATE99507T1publicationCriticalpatent/ATE99507T1/de