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 JP13067176ApriorityCriticalpatent/JPS5355575A/ja
Priority to US05/831,675prioritypatent/US4108777A/en
Priority to GB3857677Aprioritypatent/GB1554803A/en
Priority to DE19772741812prioritypatent/DE2741812C2/de
Publication of JPS5355575ApublicationCriticalpatent/JPS5355575A/ja
Publication of JPS5514684B2publicationCriticalpatent/JPS5514684B2/ja