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Priority to JP7887171UpriorityCriticalpatent/JPS5230803Y2/ja
Priority to US00236733Aprioritypatent/US3832907A/en
Priority to DE2214952Aprioritypatent/DE2214952C3/de
Publication of JPS4835204UpublicationCriticalpatent/JPS4835204U/ja
Application grantedgrantedCritical
Publication of JPS5230803Y2publicationCriticalpatent/JPS5230803Y2/ja