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 Pieter C GeensenfiledCriticalPieter C Geensen
Priority to BE585573ApriorityCriticalpatent/BE585573A/fr
Publication of BE585573ApublicationCriticalpatent/BE585573A/fr