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Priority to JP13097589UpriorityCriticalpatent/JPH079871Y2/ja
Priority to US07/452,610prioritypatent/US4989799A/en
Priority to DE3942044Aprioritypatent/DE3942044A1/de
Publication of JPH0372570UpublicationCriticalpatent/JPH0372570U/ja
Application grantedgrantedCritical
Publication of JPH079871Y2publicationCriticalpatent/JPH079871Y2/ja