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
Priority claimed from DE1959F0016158external-prioritypatent/DE1785915U/de
Priority claimed from DE1959F0016146external-prioritypatent/DE1789808U/de
Priority claimed from DEF16168Uexternal-prioritypatent/DE1785731U/de
Priority claimed from DEF16183Uexternal-prioritypatent/DE1785732U/de
Priority claimed from DEF16185Uexternal-prioritypatent/DE1785610U/de
Priority claimed from DE1959F0016184external-prioritypatent/DE1785609U/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Publication of BE587072ApublicationCriticalpatent/BE587072A/fr