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Priority to JP1990108752UpriorityCriticalpatent/JP2515526Y2/ja
Publication of JPH0467147UpublicationCriticalpatent/JPH0467147U/ja
Priority to US08/144,484prioritypatent/US5442149A/en
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Publication of JP2515526Y2publicationCriticalpatent/JP2515526Y2/ja
