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Priority to JP15654676UpriorityCriticalpatent/JPS5616752Y2/ja
Priority to GB48369/77Aprioritypatent/GB1554679A/en
Priority to DE19772751926prioritypatent/DE2751926A1/de
Priority to US05/853,910prioritypatent/US4151496A/en
Publication of JPS5373443UpublicationCriticalpatent/JPS5373443U/ja
Application grantedgrantedCritical
Publication of JPS5616752Y2publicationCriticalpatent/JPS5616752Y2/ja