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Priority to JP12953672UpriorityCriticalpatent/JPS5117942Y2/ja
Priority to US334731Aprioritypatent/US3883253A/en
Priority to DE2310573Aprioritypatent/DE2310573C3/de
Publication of JPS4985225UpublicationCriticalpatent/JPS4985225U/ja
Priority to US524673Aprioritypatent/US3892495A/en
Application grantedgrantedCritical
Publication of JPS5117942Y2publicationCriticalpatent/JPS5117942Y2/ja