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Priority to JP1984171891UpriorityCriticalpatent/JPH0136880Y2/ja
Priority to US06/793,635prioritypatent/US4683987A/en
Priority to CN85108269.6Aprioritypatent/CN1003927B/zh
Publication of JPS6186393UpublicationCriticalpatent/JPS6186393U/ja
Application grantedgrantedCritical
Publication of JPH0136880Y2publicationCriticalpatent/JPH0136880Y2/ja
