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Priority to JP1987170206UpriorityCriticalpatent/JPH0619051Y2/ja
Priority to EP19880109456prioritypatent/EP0295623B1/en
Priority to DE8888109456Tprioritypatent/DE3867720D1/de
Priority to CA 569571prioritypatent/CA1322470C/en
Priority to US07/207,749prioritypatent/US4854176A/en
Publication of JPH0174526UpublicationCriticalpatent/JPH0174526U/ja
Application grantedgrantedCritical
Publication of JPH0619051Y2publicationCriticalpatent/JPH0619051Y2/ja