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Priority to JP17740180UpriorityCriticalpatent/JPS6226742Y2/ja
Priority to DE3145472Aprioritypatent/DE3145472C2/de
Priority to US06/326,633prioritypatent/US4408856A/en
Publication of JPS5798431UpublicationCriticalpatent/JPS5798431U/ja
Application grantedgrantedCritical
Publication of JPS6226742Y2publicationCriticalpatent/JPS6226742Y2/ja