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 AT198135DpriorityCriticalpatent/AT198135B/de
Application filed by Austria Email AgfiledCriticalAustria Email Ag
Priority to AT751456Aprioritypatent/AT202460B/de
Application grantedgrantedCritical
Publication of AT202460BpublicationCriticalpatent/AT202460B/de