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 GB868609171Aexternal-prioritypatent/GB8609171D0/en
Application filed by Const Utilities Group LtdfiledCriticalConst Utilities Group Ltd
Publication of NO875176LpublicationCriticalpatent/NO875176L/en
Publication of NO875176D0publicationCriticalpatent/NO875176D0/en
Publication of NO169911BpublicationCriticalpatent/NO169911B/en
Publication of NO169911CpublicationCriticalpatent/NO169911C/en