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 GB31026/66ApriorityCriticalpatent/GB1145112A/en
Priority claimed from GB31026/66Aexternal-prioritypatent/GB1145112A/en
Application filedfiledCritical
Priority to NL6610488Aprioritypatent/NL6610488A/xx
Priority to FR74228Aprioritypatent/FR1503607A/fr
Publication of NL6610488ApublicationCriticalpatent/NL6610488A/xx