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 JP2012872ApriorityCriticalpatent/JPS5232530B2/ja
Priority to DE19732309626prioritypatent/DE2309626A1/de
Priority to US00336335Aprioritypatent/US3826943A/en
Priority to NL7302777Aprioritypatent/NL7302777A/xx
Publication of JPS4890137ApublicationCriticalpatent/JPS4890137A/ja
Publication of JPS5232530B2publicationCriticalpatent/JPS5232530B2/ja