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Priority to JP7913771UpriorityCriticalpatent/JPS4835302U/ja
Priority to US00222516Aprioritypatent/US3787622A/en
Priority to GB531672Aprioritypatent/GB1375782A/en
Priority to DE2205465Aprioritypatent/DE2205465C2/de
Publication of JPS4835302UpublicationCriticalpatent/JPS4835302U/ja