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 Wilkins & Mitchell LtdfiledCriticalWilkins & Mitchell Ltd
Application grantedgrantedCritical
Publication of DK81663CpublicationCriticalpatent/DK81663C/da