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Priority to JP14612175UpriorityCriticalpatent/JPS5614498Y2/ja
Priority to US05/727,357prioritypatent/US4119982A/en
Priority to DE19762643568prioritypatent/DE2643568A1/de
Publication of JPS5260333UpublicationCriticalpatent/JPS5260333U/ja
Application grantedgrantedCritical
Publication of JPS5614498Y2publicationCriticalpatent/JPS5614498Y2/ja