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Priority to JP131491UpriorityCriticalpatent/JP2508563Y2/ja
Priority to US07/811,490prioritypatent/US5228353A/en
Priority to DE4142983Aprioritypatent/DE4142983C2/de
Publication of JPH0497150UpublicationCriticalpatent/JPH0497150U/ja
Application grantedgrantedCritical
Publication of JP2508563Y2publicationCriticalpatent/JP2508563Y2/ja