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Priority to JP1975055347UpriorityCriticalpatent/JPS5928414Y2/ja
Priority to US05/677,148prioritypatent/US4264177A/en
Priority to GB16359/76Aprioritypatent/GB1516912A/en
Priority to DE19762617732prioritypatent/DE2617732A1/de
Publication of JPS51135536UpublicationCriticalpatent/JPS51135536U/ja
Application grantedgrantedCritical
Publication of JPS5928414Y2publicationCriticalpatent/JPS5928414Y2/ja