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 to NL299912DpriorityCriticalpatent/NL299912A/xx
Priority to NL299913Dprioritypatent/NL299913A/xx
Application filed by Shell Int ResearchfiledCriticalShell Int Research
Priority to NL299912Aprioritypatent/NL141789B/nl
Priority to US405695Aprioritypatent/US3345046A/en
Priority to US405696Aprioritypatent/US3304694A/en
Priority to FR992961Aprioritypatent/FR1412804A/fr
Priority to GB44033/64Aprioritypatent/GB1074970A/en
Priority to GB44054/64Aprioritypatent/GB1070777A/en
Priority to DES93950Aprioritypatent/DE1256192B/de
Priority to BE654959Dprioritypatent/BE654959A/xx
Priority to FR992960Aprioritypatent/FR1412803A/fr
Priority to DES93948Aprioritypatent/DE1254125B/de
Publication of NL141789BpublicationCriticalpatent/NL141789B/nl