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Priority to JP3718287UpriorityCriticalpatent/JPH0511461Y2/ja
Priority to US07/168,398prioritypatent/US4878453A/en
Priority to DE3808826Aprioritypatent/DE3808826C2/de
Publication of JPS63145117UpublicationCriticalpatent/JPS63145117U/ja
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Publication of JPH0511461Y2publicationCriticalpatent/JPH0511461Y2/ja