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Priority to JP1990018797UpriorityCriticalpatent/JP2542410Y2/ja
Priority to GB9103858Aprioritypatent/GB2241924B/en
Publication of JPH03109836UpublicationCriticalpatent/JPH03109836U/ja
Priority to US07/924,586prioritypatent/US5215389A/en
Priority to HK29995Aprioritypatent/HK29995A/xx
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Publication of JP2542410Y2publicationCriticalpatent/JP2542410Y2/ja