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Priority to JP15286188UpriorityCriticalpatent/JPH0648161Y2/ja
Priority to US07/415,918prioritypatent/US5063744A/en
Priority to DE3933518Aprioritypatent/DE3933518C2/de
Publication of JPH0272803UpublicationCriticalpatent/JPH0272803U/ja
Application grantedgrantedCritical
Publication of JPH0648161Y2publicationCriticalpatent/JPH0648161Y2/ja