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 Desoer SafiledCriticalDesoer Sa
Priority to BE595976ApriorityCriticalpatent/BE595976A/fr
Publication of BE595976ApublicationCriticalpatent/BE595976A/fr