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 JP7218672ApriorityCriticalpatent/JPS5613930B2/ja
Priority to US00374836Aprioritypatent/US3820131A/en
Priority to DE19732334589prioritypatent/DE2334589A1/de
Publication of JPS4930031ApublicationCriticalpatent/JPS4930031A/ja
Publication of JPS5613930B2publicationCriticalpatent/JPS5613930B2/ja
