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Priority to JP1979057127UpriorityCriticalpatent/JPS6332355Y2/ja
Priority to US06/123,424prioritypatent/US4282840A/en
Publication of JPS55158246UpublicationCriticalpatent/JPS55158246U/ja
Application grantedgrantedCritical
Publication of JPS6332355Y2publicationCriticalpatent/JPS6332355Y2/ja