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Priority to JP11949772UpriorityCriticalpatent/JPS4974834U/ja
Priority to US404909Aprioritypatent/US3920238A/en
Priority to GB4803273Aprioritypatent/GB1452127A/en
Priority to FR7336771Aprioritypatent/FR2203368A5/fr
Priority to DE2351879Aprioritypatent/DE2351879C2/de
Priority to AU61446/73Aprioritypatent/AU483062B2/en
Priority to CA183,529Aprioritypatent/CA1001180A/en
Publication of JPS4974834UpublicationCriticalpatent/JPS4974834U/ja