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Priority to JP1987035978UpriorityCriticalpatent/JP2529494Y2/ja
Priority to US07/166,595prioritypatent/US4949203A/en
Publication of JPS63146345UpublicationCriticalpatent/JPS63146345U/ja
Priority to US07/343,709prioritypatent/US4930028A/en
Priority to US07/663,082prioritypatent/US5114093A/en
Application grantedgrantedCritical
Publication of JP2529494Y2publicationCriticalpatent/JP2529494Y2/ja