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Priority to JP1985160701UpriorityCriticalpatent/JPH0452407Y2/ja
Priority to GB8620604Aprioritypatent/GB2179700B/en
Priority to US06/900,844prioritypatent/US4825822A/en
Publication of JPS6269003UpublicationCriticalpatent/JPS6269003U/ja
Application grantedgrantedCritical
Publication of JPH0452407Y2publicationCriticalpatent/JPH0452407Y2/ja
