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Priority to JP1987061468UpriorityCriticalpatent/JP2527157Y2/ja
Priority to DE19883800904prioritypatent/DE3800904A1/de
Publication of JPS63171065UpublicationCriticalpatent/JPS63171065U/ja
Priority to US07/719,083prioritypatent/US5365605A/en
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Publication of JP2527157Y2publicationCriticalpatent/JP2527157Y2/ja