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Priority to JP1988102683UpriorityCriticalpatent/JPH0629364Y2/ja
Priority to US07/355,909prioritypatent/US5129803A/en
Priority to GB8911967Aprioritypatent/GB2219333B/en
Publication of JPH0223657UpublicationCriticalpatent/JPH0223657U/ja
Application grantedgrantedCritical
Publication of JPH0629364Y2publicationCriticalpatent/JPH0629364Y2/ja