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Priority to JP1985056688UpriorityCriticalpatent/JPH0230108Y2/ja
Priority to US06/836,846prioritypatent/US4724949A/en
Publication of JPS61172629UpublicationCriticalpatent/JPS61172629U/ja
Application grantedgrantedCritical
Publication of JPH0230108Y2publicationCriticalpatent/JPH0230108Y2/ja
