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Priority to JP6968087UpriorityCriticalpatent/JPH062053Y2/ja
Priority to DE8787307821Tprioritypatent/DE3768062D1/de
Priority to EP87307821Aprioritypatent/EP0259173B1/en
Priority to US07/093,573prioritypatent/US4947706A/en
Publication of JPS63178651UpublicationCriticalpatent/JPS63178651U/ja
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Publication of JPH062053Y2publicationCriticalpatent/JPH062053Y2/ja