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Priority to JP3148776UpriorityCriticalpatent/JPS544977Y2/ja
Priority to US05/777,480prioritypatent/US4154137A/en
Priority to AU23250/77Aprioritypatent/AU510237B2/en
Priority to DE2711466Aprioritypatent/DE2711466C3/de
Publication of JPS52124232UpublicationCriticalpatent/JPS52124232U/ja
Application grantedgrantedCritical
Publication of JPS544977Y2publicationCriticalpatent/JPS544977Y2/ja