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 GB868609174Aexternal-prioritypatent/GB8609174D0/en
Priority claimed from GB868609172Aexternal-prioritypatent/GB8609172D0/en
Application filed by Glidevale Building ProdfiledCriticalGlidevale Building Prod
Priority claimed from EP19870303310external-prioritypatent/EP0243079B1/en
Application grantedgrantedCritical
Publication of ATE64640T1publicationCriticalpatent/ATE64640T1/en