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Priority to JP14150186UpriorityCriticalpatent/JPH0423942Y2/ja
Priority to CA000521508Aprioritypatent/CA1257100A/en
Priority to US06/923,428prioritypatent/US4709899A/en
Priority to CN86107528.5Aprioritypatent/CN1010703B/zh
Publication of JPS6350932UpublicationCriticalpatent/JPS6350932U/ja
Application grantedgrantedCritical
Publication of JPH0423942Y2publicationCriticalpatent/JPH0423942Y2/ja