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 JP5100773ApriorityCriticalpatent/JPS5432574B2/ja
Priority to DE2403186Aprioritypatent/DE2403186C3/de
Priority to GB305974Aprioritypatent/GB1452149A/en
Publication of JPS502541ApublicationCriticalpatent/JPS502541A/ja
Priority to US05/593,293prioritypatent/US4052127A/en
Publication of JPS5432574B2publicationCriticalpatent/JPS5432574B2/ja
Priority to US06/297,931prioritypatent/USRE31371E/en