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Priority to JP8642671UpriorityCriticalpatent/JPS5146030Y2/ja
Priority to US00290800Aprioritypatent/US3797127A/en
Priority to DE2246734Aprioritypatent/DE2246734C3/de
Publication of JPS4842546UpublicationCriticalpatent/JPS4842546U/ja
Application grantedgrantedCritical
Publication of JPS5146030Y2publicationCriticalpatent/JPS5146030Y2/ja