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Application filedfiledCritical
Priority to JP11693683UpriorityCriticalpatent/JPS6023721U/ja
Priority to EP83111731Aprioritypatent/EP0110321B1/en
Priority to DE8383111731Tprioritypatent/DE3377936D1/de
Priority to CA000441833Aprioritypatent/CA1206351A/en
Publication of JPS6023721UpublicationCriticalpatent/JPS6023721U/ja
Priority to US06/821,222prioritypatent/US4627295A/en
Application grantedgrantedCritical
Publication of JPH0128420Y2publicationCriticalpatent/JPH0128420Y2/ja