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Priority claimed from JP4731774Aexternal-prioritypatent/JPS50139537A/ja
Priority claimed from JP4731674Aexternal-prioritypatent/JPS50139538A/ja
Application filed by Yoshida Kogyo KkfiledCriticalYoshida Kogyo Kk
Publication of HK35878ApublicationCriticalpatent/HK35878A/xx