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Priority to JP10566667UpriorityCriticalpatent/JPS4431204Y1/ja
Priority to US782158Aprioritypatent/US3540710A/en
Priority to DE1814032Aprioritypatent/DE1814032C3/de
Priority to GB58894/68Aprioritypatent/GB1209820A/en
Priority to FR1599262Dprioritypatent/FR1599262A/fr
Publication of JPS4431204Y1publicationCriticalpatent/JPS4431204Y1/ja