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 Frans Alfons GillisfiledCriticalFrans Alfons Gillis
Priority to BE599666ApriorityCriticalpatent/BE599666A/nl
Publication of BE599666ApublicationCriticalpatent/BE599666A/nl