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Priority to JP1988091646UpriorityCriticalpatent/JPH0744462Y2/ja
Priority to US07/377,156prioritypatent/US4986369A/en
Priority to EP89307015Aprioritypatent/EP0351179A1/en
Publication of JPH0215277UpublicationCriticalpatent/JPH0215277U/ja
Application grantedgrantedCritical
Publication of JPH0744462Y2publicationCriticalpatent/JPH0744462Y2/ja