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 Eduard EyckermansfiledCriticalEduard Eyckermans
Priority to BE619790ApriorityCriticalpatent/BE619790A/nl
Publication of BE619790ApublicationCriticalpatent/BE619790A/nl