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Priority to JP1989086491UpriorityCriticalpatent/JP2509080Y2/ja
Priority to DE4004936Aprioritypatent/DE4004936A1/de
Priority to US07/481,246prioritypatent/US4961404A/en
Publication of JPH0325896UpublicationCriticalpatent/JPH0325896U/ja
Application grantedgrantedCritical
Publication of JP2509080Y2publicationCriticalpatent/JP2509080Y2/ja
