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Priority to JP5582588UpriorityCriticalpatent/JPH0631170Y2/ja
Priority to US07/336,334prioritypatent/US5000668A/en
Priority to DE3913764Aprioritypatent/DE3913764A1/de
Priority to DE3943576Aprioritypatent/DE3943576C2/de
Publication of JPH01160161UpublicationCriticalpatent/JPH01160161U/ja
Application grantedgrantedCritical
Publication of JPH0631170Y2publicationCriticalpatent/JPH0631170Y2/ja