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Application filed by 日本開閉器工業株式会社filedCritical日本開閉器工業株式会社
Priority to JP9821782UpriorityCriticalpatent/JPS5859121U/ja
Priority to US06/425,368prioritypatent/US4431879A/en
Publication of JPS5859121UpublicationCriticalpatent/JPS5859121U/ja
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Publication of JPH0136253Y2publicationCriticalpatent/JPH0136253Y2/ja