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Priority to JP6037569UpriorityCriticalpatent/JPS4816511Y1/ja
Priority to US47476Aprioritypatent/US3673631A/en
Priority to GB1297864Dprioritypatent/GB1297864A/en
Priority to FR7023636Aprioritypatent/FR2051329A5/fr
Priority to DE19702031803prioritypatent/DE2031803A1/de
Publication of JPS4816511Y1publicationCriticalpatent/JPS4816511Y1/ja