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Priority to JP5055988UpriorityCriticalpatent/JPH01155497U/ja
Priority to GB8822591Aprioritypatent/GB2217218B/en
Priority to ES888803092Aprioritypatent/ES2010831A6/es
Priority to US07/338,851prioritypatent/US5019010A/en
Publication of JPH01155497UpublicationCriticalpatent/JPH01155497U/ja