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Application filedfiledCritical
Priority to JP1987138030UpriorityCriticalpatent/JPH0718118Y2/ja
Priority to DE19883830817prioritypatent/DE3830817A1/de
Publication of JPS6443534UpublicationCriticalpatent/JPS6443534U/ja
Priority to US07/449,146prioritypatent/US5132653A/en
Application grantedgrantedCritical
Publication of JPH0718118Y2publicationCriticalpatent/JPH0718118Y2/ja
