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Priority to JP13936787UpriorityCriticalpatent/JPH0620916Y2/ja
Priority to EP88308457Aprioritypatent/EP0308178B1/en
Priority to DE8888308457Tprioritypatent/DE3876559T2/de
Priority to US07/243,843prioritypatent/US4950205A/en
Publication of JPS6445044UpublicationCriticalpatent/JPS6445044U/ja
Application grantedgrantedCritical
Publication of JPH0620916Y2publicationCriticalpatent/JPH0620916Y2/ja