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Priority to JP4291485UpriorityCriticalpatent/JPH0123452Y2/ja
Priority to US06/795,434prioritypatent/US4699610A/en
Priority to DE19853540725prioritypatent/DE3540725A1/de
Publication of JPS61159921UpublicationCriticalpatent/JPS61159921U/ja
Application grantedgrantedCritical
Publication of JPH0123452Y2publicationCriticalpatent/JPH0123452Y2/ja
