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 Geoffrey Herbert CheesmanfiledCriticalGeoffrey Herbert Cheesman
Priority to IE23043ApriorityCriticalpatent/IE16589L/en
Publication of IE16589LpublicationCriticalpatent/IE16589L/en