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Priority to JP13629487UpriorityCriticalpatent/JPH0624742Y2/ja
Priority to DE8888112270Tprioritypatent/DE3869511D1/de
Priority to EP88112270Aprioritypatent/EP0302396B1/en
Priority to US07/227,672prioritypatent/US4846294A/en
Publication of JPS6442424UpublicationCriticalpatent/JPS6442424U/ja
Application grantedgrantedCritical
Publication of JPH0624742Y2publicationCriticalpatent/JPH0624742Y2/ja