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 Alois Horel, Jindrich HorelfiledCriticalAlois Horel
Priority to BE592875ApriorityCriticalpatent/BE592875A/fr
Publication of BE592875ApublicationCriticalpatent/BE592875A/fr