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Priority to JP10491275UpriorityCriticalpatent/JPS5218942U/ja
Priority to GB30185/76Aprioritypatent/GB1513217A/en
Priority to FR7622886Aprioritypatent/FR2319961A1/fr
Priority to DE2633576Aprioritypatent/DE2633576C3/de
Priority to ES450205Aprioritypatent/ES450205A1/es
Priority to US05/709,372prioritypatent/US4101951A/en
Publication of JPS5218942UpublicationCriticalpatent/JPS5218942U/ja