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Priority to JP10333189UpriorityCriticalpatent/JPH0342069U/ja
Priority to KR2019900013417Uprioritypatent/KR930000321Y1/ko
Priority to US07/575,752prioritypatent/US5101114A/en
Publication of JPH0342069UpublicationCriticalpatent/JPH0342069U/ja