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Priority to JP705370UpriorityCriticalpatent/JPS509713Y1/ja
Priority to CA094266Aprioritypatent/CA931130A/en
Priority to GB4637570Aprioritypatent/GB1322924A/en
Priority to FR7035718Aprioritypatent/FR2064949A5/fr
Priority to DE19702048779prioritypatent/DE2048779C3/de
Publication of JPS509713Y1publicationCriticalpatent/JPS509713Y1/ja