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Application filedfiledCritical
Priority to JP1987145712UpriorityCriticalpatent/JPH0332532Y2/ja
Priority to US07/221,737prioritypatent/US4922705A/en
Priority to DE3824986Aprioritypatent/DE3824986A1/de
Publication of JPS6451672UpublicationCriticalpatent/JPS6451672U/ja
Application grantedgrantedCritical
Publication of JPH0332532Y2publicationCriticalpatent/JPH0332532Y2/ja
