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Priority to JP2496188UpriorityCriticalpatent/JPH057162Y2/ja
Priority to US07/314,101prioritypatent/US5092460A/en
Publication of JPH01130977UpublicationCriticalpatent/JPH01130977U/ja
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Publication of JPH057162Y2publicationCriticalpatent/JPH057162Y2/ja