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 JP7164173ApriorityCriticalpatent/JPS5629006B2/ja
Priority to DE19742429043prioritypatent/DE2429043C3/de
Priority to GB2720674Aprioritypatent/GB1471950A/en
Priority to FR7421318Aprioritypatent/FR2234394B1/fr
Publication of JPS5018722ApublicationCriticalpatent/JPS5018722A/ja
Priority to US05/646,645prioritypatent/US4060516A/en
Publication of JPS5629006B2publicationCriticalpatent/JPS5629006B2/ja