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Priority claimed from JP10496272Aexternal-prioritypatent/JPS5147773B2/ja
Priority claimed from JP732527Aexternal-prioritypatent/JPS5530484B2/ja
Priority claimed from JP252673Aexternal-prioritypatent/JPS5212249B2/ja
Priority claimed from AT881273Aexternal-prioritypatent/AT331794B/de
Application filed by Nippon Soda CofiledCriticalNippon Soda Co
Priority to AT437475ApriorityCriticalpatent/ATA437475A/de
Publication of ATA437475ApublicationCriticalpatent/ATA437475A/de