Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP1989063618UpriorityCriticalpatent/JPH032970U/ja
Priority to KR1019910700108Aprioritypatent/KR940009809B1/ko
Priority to US07/635,584prioritypatent/US5109887A/en
Priority to EP19900907470prioritypatent/EP0433453A4/en
Priority to PCT/JP1990/000688prioritypatent/WO1990015274A1/ja
Publication of JPH032970UpublicationCriticalpatent/JPH032970U/ja
