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Application filed by ニツスイ工業株式会社filedCriticalニツスイ工業株式会社
Priority to JP1980106755UpriorityCriticalpatent/JPS5811722Y2/ja
Priority to US06/284,404prioritypatent/US4448316A/en
Publication of JPS5729549UpublicationCriticalpatent/JPS5729549U/ja
Application grantedgrantedCritical
Publication of JPS5811722Y2publicationCriticalpatent/JPS5811722Y2/ja