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Priority to JP1105781UpriorityCriticalpatent/JPS6330234Y2/ja
Priority to US06/341,626prioritypatent/US4438378A/en
Priority to GB8201898Aprioritypatent/GB2093287B/en
Priority to DE3202912Aprioritypatent/DE3202912C2/de
Publication of JPS57127592UpublicationCriticalpatent/JPS57127592U/ja
Application grantedgrantedCritical
Publication of JPS6330234Y2publicationCriticalpatent/JPS6330234Y2/ja