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Priority to JP1974037894UpriorityCriticalpatent/JPS50127684U/ja
Priority to AU75839/74Aprioritypatent/AU475619B2/en
Priority to US05/549,236prioritypatent/US3978581A/en
Priority to DE2507328Aprioritypatent/DE2507328B2/de
Priority to GB711875Aprioritypatent/GB1452735A/en
Publication of JPS50127684UpublicationCriticalpatent/JPS50127684U/ja