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Priority to JP4295074UpriorityCriticalpatent/JPS50128427U/ja
Priority to US05/562,931prioritypatent/US4022007A/en
Priority to CH445375Aprioritypatent/CH594751A5/xx
Priority to GB1518875Aprioritypatent/GB1453264A/en
Priority to DE19752516519prioritypatent/DE2516519A1/de
Publication of JPS50128427UpublicationCriticalpatent/JPS50128427U/ja