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Publication date
Priority claimed from GB5726/74Aexternal-prioritypatent/GB1492175A/en
Priority claimed from AT75775Aexternal-prioritypatent/AT335445B/de
Application filed by HexachimiefiledCriticalHexachimie
Priority to AT367176ApriorityCriticalpatent/AT343644B/de
Publication of ATA367176ApublicationCriticalpatent/ATA367176A/de
Application grantedgrantedCritical
Publication of AT343644BpublicationCriticalpatent/AT343644B/de