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Priority to JP12227087UpriorityCriticalpatent/JPH054403Y2/ja
Priority to DE3826930Aprioritypatent/DE3826930C2/de
Priority to US07/230,081prioritypatent/US4941677A/en
Priority to GB8819032Aprioritypatent/GB2208630B/en
Publication of JPS6426506UpublicationCriticalpatent/JPS6426506U/ja
Priority to GB9117232Aprioritypatent/GB2246329B/en
Application grantedgrantedCritical
Publication of JPH054403Y2publicationCriticalpatent/JPH054403Y2/ja