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Priority to JP17471180UpriorityCriticalpatent/JPH023587Y2/ja
Priority to DE19813139094prioritypatent/DE3139094A1/de
Publication of JPS5798483UpublicationCriticalpatent/JPS5798483U/ja
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Publication of JPH023587Y2publicationCriticalpatent/JPH023587Y2/ja