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Priority to JP19542384UpriorityCriticalpatent/JPH0245877Y2/ja
Priority to US06/799,646prioritypatent/US4687318A/en
Priority to GB8528594Aprioritypatent/GB2168822B/en
Priority to DE3542885Aprioritypatent/DE3542885A1/de
Publication of JPS61109787UpublicationCriticalpatent/JPS61109787U/ja
Application grantedgrantedCritical
Publication of JPH0245877Y2publicationCriticalpatent/JPH0245877Y2/ja
