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Priority to JP1987162177UpriorityCriticalpatent/JPH0516629Y2/ja
Priority to US07/255,725prioritypatent/US4843944A/en
Priority to KR1019880013357Aprioritypatent/KR920008288B1/ko
Priority to DE3835488Aprioritypatent/DE3835488A1/de
Publication of JPH0167696UpublicationCriticalpatent/JPH0167696U/ja
Application grantedgrantedCritical
Publication of JPH0516629Y2publicationCriticalpatent/JPH0516629Y2/ja