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Priority to JP6016190UpriorityCriticalpatent/JPH0421823U/ja
Priority to KR1019910003496Aprioritypatent/KR930009516B1/ko
Priority to DE4113545Aprioritypatent/DE4113545C2/de
Priority to US07/692,344prioritypatent/US5226325A/en
Publication of JPH0421823UpublicationCriticalpatent/JPH0421823U/ja