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Priority to JP3729788UpriorityCriticalpatent/JPH01140560U/ja
Priority to DE3833302Aprioritypatent/DE3833302C2/de
Priority to US07/251,180prioritypatent/US5045892A/en
Priority to DE19893909514prioritypatent/DE3909514A1/de
Publication of JPH01140560UpublicationCriticalpatent/JPH01140560U/ja