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 Kouperman Bidons Boites MetallfiledCriticalKouperman Bidons Boites Metall
Priority to BE591918ApriorityCriticalpatent/BE591918A/fr
Publication of BE591918ApublicationCriticalpatent/BE591918A/fr