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Priority to JP15927287UpriorityCriticalpatent/JPH068257Y2/ja
Priority to KR1019880008638Aprioritypatent/KR930000473B1/ko
Priority to DE3824578Aprioritypatent/DE3824578A1/de
Priority to US07/221,091prioritypatent/US4881959A/en
Publication of JPH0163719UpublicationCriticalpatent/JPH0163719U/ja
Application grantedgrantedCritical
Publication of JPH068257Y2publicationCriticalpatent/JPH068257Y2/ja
