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 Kelvin & Hughes Limited, Kelvin WorksfiledCriticalKelvin & Hughes Limited, Kelvin Works
Priority to IS1211ApriorityCriticalpatent/IS503B6/en
Publication of IS1211A7publicationCriticalpatent/IS1211A7/en
Publication of IS503B6publicationCriticalpatent/IS503B6/en