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Priority to JP10399188UpriorityCriticalpatent/JPH0225762U/ja
Priority to KR1019890000927Aprioritypatent/KR930006217B1/ko
Priority to US07/304,297prioritypatent/US4969368A/en
Priority to DE3902659Aprioritypatent/DE3902659A1/de
Publication of JPH0225762UpublicationCriticalpatent/JPH0225762U/ja
