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Priority to JP6082884UpriorityCriticalpatent/JPS60171883U/ja
Priority to US06/725,428prioritypatent/US4700839A/en
Priority to DE8512020Uprioritypatent/DE8512020U1/de
Priority to GB08510438Aprioritypatent/GB2160509B/en
Publication of JPS60171883UpublicationCriticalpatent/JPS60171883U/ja
Application grantedgrantedCritical
Publication of JPH031426Y2publicationCriticalpatent/JPH031426Y2/ja