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Priority to JP732489UpriorityCriticalpatent/JPH076473Y2/ja
Priority to EP19900300811prioritypatent/EP0380346B1/en
Priority to DE1990607992prioritypatent/DE69007992T2/de
Publication of JPH0299197UpublicationCriticalpatent/JPH0299197U/ja
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Publication of JPH076473Y2publicationCriticalpatent/JPH076473Y2/ja