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Priority to JP1989045860UpriorityCriticalpatent/JPH072264Y2/ja
Priority to DE4012359Aprioritypatent/DE4012359C2/de
Priority to US07/568,137prioritypatent/US5129858A/en
Publication of JPH02136707UpublicationCriticalpatent/JPH02136707U/ja
Priority to US07/850,948prioritypatent/US5238448A/en
Application grantedgrantedCritical
Publication of JPH072264Y2publicationCriticalpatent/JPH072264Y2/ja