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.)
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Publication date
Priority claimed from CH908774Aexternal-prioritypatent/CH580522A5/de
Priority claimed from CH1180974Aexternal-prioritypatent/CH591999A5/de
Application filed by Bon F DelfiledCriticalBon F Del
Priority to AT361177ApriorityCriticalpatent/AT365149B/de
Publication of ATA500075ApublicationCriticalpatent/ATA500075A/de
Application grantedgrantedCritical
Publication of AT345155BpublicationCriticalpatent/AT345155B/de