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Application filedfiledCritical
Priority to JP1989008539UpriorityCriticalpatent/JPH089431Y2/ja
Priority to US07/470,985prioritypatent/US4974702A/en
Priority to DE4002221Aprioritypatent/DE4002221C2/de
Publication of JPH02101082UpublicationCriticalpatent/JPH02101082U/ja
Application grantedgrantedCritical
Publication of JPH089431Y2publicationCriticalpatent/JPH089431Y2/ja
