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Priority to JP10967589UpriorityCriticalpatent/JPH062727Y2/ja
Priority to US07/540,184prioritypatent/US5030258A/en
Priority to EP90111578Aprioritypatent/EP0404070B1/en
Priority to DE69005206Tprioritypatent/DE69005206T2/de
Publication of JPH0354721UpublicationCriticalpatent/JPH0354721U/ja
Application grantedgrantedCritical
Publication of JPH062727Y2publicationCriticalpatent/JPH062727Y2/ja