Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Priority to JP11965785UpriorityCriticalpatent/JPS6229732U/ja
Priority to US06/813,150prioritypatent/US4662736A/en
Publication of JPS6229732UpublicationCriticalpatent/JPS6229732U/ja
Priority to US07/046,940prioritypatent/US4816862A/en
