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Priority to JP9473490UpriorityCriticalpatent/JPH0454075U/ja
Priority to DE4130228Aprioritypatent/DE4130228A1/de
Publication of JPH0454075UpublicationCriticalpatent/JPH0454075U/ja
Priority to US07/978,854prioritypatent/US5305172A/en
Priority to US08/206,272prioritypatent/US5494621A/en