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
Application filed by British Steel CorpfiledCriticalBritish Steel Corp
Priority to DK198874ApriorityCriticalpatent/DK198874A/da
Publication of DK198874ApublicationCriticalpatent/DK198874A/da
