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Priority to JP1989130111UpriorityCriticalpatent/JPH0742447Y2/ja
Priority to US07/618,676prioritypatent/US5096200A/en
Priority to KR1019900018077Aprioritypatent/KR100192086B1/ko
Publication of JPH0370176UpublicationCriticalpatent/JPH0370176U/ja
Priority to US07/765,914prioritypatent/US5282628A/en
Application grantedgrantedCritical
Publication of JPH0742447Y2publicationCriticalpatent/JPH0742447Y2/ja