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Priority to JP42057806ApriorityCriticalpatent/JPS509723B1/ja
Priority to FR1581279Dprioritypatent/FR1581279A/fr
Priority to DE19681796122prioritypatent/DE1796122A1/de
Priority to DE19686610244prioritypatent/DE6610244U/de
Priority to GB1234634Dprioritypatent/GB1234634A/en
Publication of JPS509723B1publicationCriticalpatent/JPS509723B1/ja