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 GB1159361Aexternal-prioritypatent/GB933065A/en
Application filed by Fanghanel And Company Ltd PfiledCriticalFanghanel And Company Ltd P
Publication of BE615997ApublicationCriticalpatent/BE615997A/fr