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Priority to JP1972009524UpriorityCriticalpatent/JPS524940Y2/ja
Priority to DE2240781Aprioritypatent/DE2240781B2/de
Priority to DE2264702Aprioritypatent/DE2264702C3/de
Priority to US05/389,072prioritypatent/US3932024A/en
Publication of JPS4895589UpublicationCriticalpatent/JPS4895589U/ja
Priority to US05/498,339prioritypatent/US3947090A/en
Application grantedgrantedCritical
Publication of JPS524940Y2publicationCriticalpatent/JPS524940Y2/ja