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Priority to JP10402372UpriorityCriticalpatent/JPS5037251Y2/ja
Priority to US394089Aprioritypatent/US3858406A/en
Priority to GB4191573Aprioritypatent/GB1444609A/en
Publication of JPS4961754UpublicationCriticalpatent/JPS4961754U/ja
Application grantedgrantedCritical
Publication of JPS5037251Y2publicationCriticalpatent/JPS5037251Y2/ja