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Priority to JP6789770ApriorityCriticalpatent/JPS4919936B1/ja
Priority to DE19712138846prioritypatent/DE2138846C3/de
Priority to GB3652771Aprioritypatent/GB1330235A/en
Priority to US00168682Aprioritypatent/US3742291A/en
Priority to CA119672Aprioritypatent/CA935500A/en
Priority to FR7128587Aprioritypatent/FR2103954A5/fr
Publication of JPS4919936B1publicationCriticalpatent/JPS4919936B1/ja