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Priority to JP1988041864UpriorityCriticalpatent/JPH0622403Y2/ja
Priority to US07/330,464prioritypatent/US4925561A/en
Publication of JPH01148708UpublicationCriticalpatent/JPH01148708U/ja
Application grantedgrantedCritical
Publication of JPH0622403Y2publicationCriticalpatent/JPH0622403Y2/ja
