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Priority claimed from JP49107654Aexternal-prioritypatent/JPS5931481B2/ja
Priority claimed from AT7177Aexternal-prioritypatent/AT353870B/de
Application filed by Nippon Soda CofiledCriticalNippon Soda Co
Publication of ATA766077ApublicationCriticalpatent/ATA766077A/de
Application grantedgrantedCritical
Publication of AT347177BpublicationCriticalpatent/AT347177B/de