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Priority to JP44002221ApriorityCriticalpatent/JPS4840405B1/ja
Priority to US365Aprioritypatent/US3603809A/en
Priority to NL707000267Aprioritypatent/NL150290B/xx
Priority to DE19702000755prioritypatent/DE2000755B2/de
Publication of JPS4840405B1publicationCriticalpatent/JPS4840405B1/ja