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Priority to JP7534772ApriorityCriticalpatent/JPS4948349A/ja
Priority to US382182Aprioritypatent/US3878718A/en
Priority to GB3521773Aprioritypatent/GB1386580A/en
Priority to IT27137/73Aprioritypatent/IT992717B/it
Priority to DE19732337948prioritypatent/DE2337948C3/de
Publication of JPS4948349ApublicationCriticalpatent/JPS4948349A/ja