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Priority to JP7108376UpriorityCriticalpatent/JPS52161906U/ja
Priority to GB2285777Aprioritypatent/GB1582210A/en
Publication of JPS52161906UpublicationCriticalpatent/JPS52161906U/ja
Priority to SG83083Aprioritypatent/SG83083G/en
Priority to MY8500231Aprioritypatent/MY8500231A/xx