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 Leon G GuillaumefiledCriticalLeon G Guillaume
Priority to BE607836ApriorityCriticalpatent/BE607836A/fr
Publication of BE607836ApublicationCriticalpatent/BE607836A/fr
Priority to ES0279937Aprioritypatent/ES279937A1/es