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Priority claimed from GB3490977Aexternal-prioritypatent/GB1587912A/en
Priority claimed from AT0601178Aexternal-prioritypatent/AT370120B/de
Application filed by Hercules IncfiledCriticalHercules Inc
Priority to AT179281ApriorityCriticalpatent/AT375424B/de
Publication of ATA179281ApublicationCriticalpatent/ATA179281A/de
Application grantedgrantedCritical
Publication of AT375424BpublicationCriticalpatent/AT375424B/de