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Application filedfiledCritical
Priority to JP1989004338UpriorityCriticalpatent/JPH0623670Y2/ja
Priority to GB9000973Aprioritypatent/GB2228528B/en
Priority to US07/465,787prioritypatent/US5079797A/en
Priority to DE4001199Aprioritypatent/DE4001199C2/de
Priority to KR1019900000562Aprioritypatent/KR930007076B1/ko
Publication of JPH0295775UpublicationCriticalpatent/JPH0295775U/ja
Application grantedgrantedCritical
Publication of JPH0623670Y2publicationCriticalpatent/JPH0623670Y2/ja