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 GB07115/67Aexternal-prioritypatent/GB1177525A/en
Application filed by Aktiebolaget LeofiledCriticalAktiebolaget Leo
Publication of IS1733A7publicationCriticalpatent/IS1733A7/is
Publication of IS815B6publicationCriticalpatent/IS815B6/is