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Priority to JP2206890UpriorityCriticalpatent/JP2505450Y2/ja
Priority to US07/569,563prioritypatent/US5058455A/en
Priority to DE4027508Aprioritypatent/DE4027508C2/de
Publication of JPH03112426UpublicationCriticalpatent/JPH03112426U/ja
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Publication of JP2505450Y2publicationCriticalpatent/JP2505450Y2/ja