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Priority to JP15647887UpriorityCriticalpatent/JPH0446570Y2/ja
Priority to GB8823002Aprioritypatent/GB2210859A/en
Priority to KR1019880013370Aprioritypatent/KR960000877B1/ko
Publication of JPH0161121UpublicationCriticalpatent/JPH0161121U/ja
Application grantedgrantedCritical
Publication of JPH0446570Y2publicationCriticalpatent/JPH0446570Y2/ja
