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Priority claimed from CH1238974Aexternal-prioritypatent/CH572978A5/xx
Application filed by Mueller HansfiledCriticalMueller Hans
Priority claimed from AT0203177Aexternal-prioritypatent/AT375553B/de
Publication of ATA87077ApublicationCriticalpatent/ATA87077A/de
Application grantedgrantedCritical
Publication of AT352671BpublicationCriticalpatent/AT352671B/de