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 JP5527277ApriorityCriticalpatent/JPS53141170A/ja
Priority to GB19575/78Aprioritypatent/GB1594304A/en
Priority to US05/905,939prioritypatent/US4186089A/en
Priority to DE2821365Aprioritypatent/DE2821365C3/de
Publication of JPS53141170ApublicationCriticalpatent/JPS53141170A/ja
Publication of JPS5721367B2publicationCriticalpatent/JPS5721367B2/ja