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
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Application filedfiledCritical
Priority to NL6612023ApriorityCriticalpatent/NL6612023A/xx
Priority to DE19671638494prioritypatent/DE1638494A1/de
Priority to GB3875667Aprioritypatent/GB1142549A/en
Priority to ES344417Aprioritypatent/ES344417A1/es
Priority to BE703055Dprioritypatent/BE703055A/xx
Priority to FR119032Aprioritypatent/FR1534644A/fr
Publication of NL6612023ApublicationCriticalpatent/NL6612023A/xx