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Priority to JP2253089UpriorityCriticalpatent/JPH02114776U/ja
Priority to DE1989609193prioritypatent/DE68909193T2/de
Priority to EP19890123024prioritypatent/EP0373616B1/en
Priority to US07/450,263prioritypatent/US5230519A/en
Publication of JPH02114776UpublicationCriticalpatent/JPH02114776U/ja