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Priority to JP1984148290UpriorityCriticalpatent/JPH051011Y2/ja
Priority to DE3534574Aprioritypatent/DE3534574C3/de
Priority to US06/781,588prioritypatent/US4766580A/en
Publication of JPS6164667UpublicationCriticalpatent/JPS6164667U/ja
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Publication of JPH051011Y2publicationCriticalpatent/JPH051011Y2/ja