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Priority to JP6152074UpriorityCriticalpatent/JPS50150037U/ja
Priority to GB2080575Aprioritypatent/GB1468133A/en
Priority to US05/579,216prioritypatent/US3953095A/en
Priority to DE2523455Aprioritypatent/DE2523455C2/de
Publication of JPS50150037UpublicationCriticalpatent/JPS50150037U/ja