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Priority claimed from US08/218,716external-prioritypatent/US5467084A/en
Application filed by Jervis B. Webb International CompanyfiledCriticalJervis B. Webb International Company
Publication of HK1014061A1publicationCriticalpatent/HK1014061A1/zh
Publication of HK1014061BpublicationCriticalpatent/HK1014061B/zh