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Priority to JP14908387UpriorityCriticalpatent/JPH0142912Y2/ja
Priority to DE19883830817prioritypatent/DE3830817A1/de
Publication of JPS6455534UpublicationCriticalpatent/JPS6455534U/ja
Application grantedgrantedCritical
Priority to US07/449,146prioritypatent/US5132653A/en
Publication of JPH0142912Y2publicationCriticalpatent/JPH0142912Y2/ja