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 Fernand Louis Jozef JanssensfiledCriticalFernand Louis Jozef Janssens
Priority to BE599977ApriorityCriticalpatent/BE599977A/nl
Publication of BE599977ApublicationCriticalpatent/BE599977A/nl