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Priority to JP4721381UpriorityCriticalpatent/JPS57159311U/ja
Priority to DE8282102674Tprioritypatent/DE3271826D1/de
Priority to IN355/CAL/82Aprioritypatent/IN156392B/en
Priority to EP82102674Aprioritypatent/EP0063703B1/en
Priority to AU82142/82Aprioritypatent/AU557055B2/en
Publication of JPS57159311UpublicationCriticalpatent/JPS57159311U/ja
Priority to US06/825,671prioritypatent/US4655538A/en